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hard disk file system corrupt and disk not accessible

Q: hard disk file system corrupt and disk not accessible

Hi, please can you help?

I have a 250Gb Seagate Barracuda ATA internal hard drive which is mounted in a Safecom usb/firewire external caddy. It has 2 partitions; a 15Gb FAT32 drive and the rest divided into 2 logical NTFS drives of 160Gb and 60Gb.

I have only had the disk a couple of months. Shortly after I purchased the disk I had a power failure whilst scan disk was running on one of the NTFS drives. Upon reboot XP did not recognise the NTFS drives reporting that the file system was corrupt, the FAT32 drive was fine and accessible.

I managed to recover all my files (mostly mp3s and movie files) from both NTFS drives using GetDataBack, reformatted the disk, replaced the partitions for good measure and reinstalled my backup.

Since then I haven't really had cause to use the disk so it has remained switched off but today I needed to transfer some files across for backup purposes. Having done this I then did a bit of housekeeping; deleted a few files and moved a few folders around on the disk. Then explorer crashed and after I managed to recover from the explorer crash I found that the NTFS partitions were once again inaccessible in XP. XP reporting that the file system is corrupt once again. Once again the FAT32 drive is accessible.

I am currently running GetDataBack again, and it looks likely that it might find all the files again (I hope). I originally purchased the disk to backup my main hard drive which I needed to perform a clean install on, this has been done. I run ewido, spyware blaster, adaware se, spybot search and destroy, avg and look'n'stop firewall. I'm pretty certain that there are no XP problems, malware or viruses on my pc.

Can anyone suggest any ideas as to why this might be happening? Could it be that this disk is incompatible with my caddy or does it sound like there is a problem with the disk itself? Would the disk be less likely to have problems if I mounted it internally? Obviously, I don't feel overconfident about using this disk for backup purposes anymore.


Preferred Solution: hard disk file system corrupt and disk not accessible

I recommend downloading and running Reimage. It's a computer repair tool that has been proven to identify and fix many Windows problems with a high level of success.

I've used it in the past to identify and fix everything from blue screens (BSOD's), ActiveX errors, corrupt files and processes, dll/exe/sys errors, recover lost memory, Windows update problems, defragging, malware removal etc.

You can download it direct from this link http://downloadreimage.com/download.php. (This link will automatically start a download of Reimage that you can save to your computer.)

A: hard disk file system corrupt and disk not accessible

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Alright, I have the C:\Windows\system32\config\system file that is corrupt/missing and I am unable to start up my computer. I've read the forums about this one, but my problem is different. Apparently, I have a SATA drive and Windows XP pro is installed. I only have a Windows XP home disk. When I try to use the Windows Home disk and Recovery Console, it says that no Hard Disk Drive is detected. From what I understand, it doesn't detect my SATA. Any tips on what to do? And no I do not have a Windows XP pro cd.

A:C:\Windows\System32\config\system file is corrupt help, Hard drive disk not detected

Hi Sigzen and welcome to TSF,

XP home will normally detect a serial HD. The BIOS is where the interface for that is maintained. USB might be a different story. It's likely that if you had a pro CD, it would tell you the same thing if you tried to get into the Recovery Console. Why don't you see if the BIOS sees the HD? If it sees it, home should see it also. If BIOS don't list the harddrive, then you might have a bad harddrive or bad connection.

Before anything else was tried, I would try Last Known Good Configuration in the Advanced Boot window. Tap F8 at early boot to get the menu. If that fails try the other boot options. If they fail, then look in the BIOS for the drive there.

If no drive, open the computer and reseat the data and power cables to the HD. Also, reseat the data cable at the motherboard. Be Very careful to touch bare case metal before reseating the cables. If that don't work, download the Disk Manufacturers Diagnostic CD file and run it.

If you must run the Recovery Console, you can download UBCD4WIN and burn it to a CD. It is a CD based windows that will boot and let you work on your computer, including running the Recovery Console.

Hope this helps,
Best regards,

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I am getting the following error message in Event Viewer and am unable to determine which disk (I have a C: (SSD), D:, F:, G: (all WD hard drives) as well as three network mapped drives . I am running Win 7 Professional. I have run WD diagnostics on all hard drives but no problems were found.

Any tips would be appreciated -


"The file system structure on the disk is corrupt and unusable. Please run the chkdsk utility on the volume ."

Source Ntfs
Event ID 55

XML View
- <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
- <System>
<Provider Name="Ntfs" />
<EventID Qualifiers="49156">55</EventID>
<TimeCreated SystemTime="2014-07-30T04:22:55.979170800Z" />
<Security />
- <EventData>
<Data />
<Data />
<Binary>0D000C000200380002000000370004C000000000320000C00000000000000000000000000000000082091200FFFF FFFFFFFFFFFF</Binary>

A:File system corrupt and unusable - but no disk indicated

I believe it would be referring to your c:\ drive.

Have you tried running chkdsk against it to see if it fines errors?
How to run chkdsk - Disk Check


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So my computer had been acting up, and I decided to shut it off and turn it back on. To my dismay when I tried to load it back up, it went through the checking ntfs screen, but when it got to the end, it just froze. I restarted it and eventually got the error that my ntoskrnl.exe file was corrupt. I put in my Vista installation disk to try and do a chkdsk, but when I tried to load from cd, the files loaded, and then I got a BSOD saying driver_irql_not_less_or_equal. I cannot start in safe mode. I am currently on my laptop, and I really do not know what to do at this point. If I were able to reformat, I would, but at this point, I can not even do that. I suspect it is a hardware problem, but I have never even heard of this happening before.

A:BSOD, corrupt system file, I can't even load from disk

I just tried to load it without certain sticks of my RAM, still no dice. I really need to get this rectified and avoid a wipe if at all possible.

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I was having trouble with my computer on Friday, it would freeze a few minutes after start up. All programs would be "not responding". I would restart it and the same thing would happen.

I ran Rkill in case there was anything malicious running and nothing was found. I ran Malwarebytes as well and nothing was found. I used combo fix to restore my system to a previous date and the problem persisted.

The system would freeze even at the log in screen if I waited more the a few minutes to log on. Time is some sort of factor.

Start up repair "disk metadata test said the root cause was 'Volume on disk corrupt' Repair action chkdsk Error code OxO.

A few other tests that are available (or automatically performed themselves before start up) mentioned NTFS but I did not get a chance to write it down.

NOW when I turd on the computer that scrolling windows progress bar goes by a few times before I get a completely black screen on which I can still move my cursor.

Please Help.

A:System volume on disk is corrupt? (disk metadata test)

Either windows Vista needs re-installing, a Factory Recovery is required, or the hard drive is starting to fail and therefore needs replacing with a new one.

You can test the hard drive with the drive manufacturer's diagnostic software. You will need to download the DOS version which runs from a bootable CD. The download contains an ISO file for creating the CD. The links are here: Hard Drive Diagnostics Tools and Utilities (Storage) - TACKtech Corp.

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I just have to empty a SD card; compressing its contents to a 7zip-file takes too much time, and if I have to access the files quickly, I prefer to use a mountable filetype. Thus the requirement to quickly create a VHDX-file, then mount it using the context
Tested using Windows 8.1 without Hyper-V-Role installed.
First, you need to create an empty vhdx-File as a template.
You already have to specify the maximum size this vhdx is allowed to expand to, in my case 255 GiB (255 GiB × 1024 MiB/GiB = 261120 MiB). This can be placed in either your user profile or shared for all users:

Current User: C:\Users\%username%\AppData\Roaming\Microsoft\Windows\Templates\All Users: C:\ProgramData\Microsoft\Windows\Templates\
To create the template:
1. Start an elevated command prompt
2. Run diskpart.exe
3. Enter the following commands:
create vdisk file=C:\ProgramData\Microsoft\Windows\Templates\Virtual-Hard-Disk.vhdx type=expandable maximum=261120
attach vdisk
create partition primary
format fs=ntfs label="Blank Virtual Disk" quick
assign letter=z
detach vdisk
4. Once the template is in place, just run this command:
reg.exe add HKCR\.vhdx\Windows.VhdFile\ShellNew /f /v FileName /t REG_SZ /d Virtual-Hard-Disk.vhdx
Now you just have to right-click in any file explorer window, also on remote network shares, select New > Hard Disk Image File and rename the file as you wish!


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My friend has a 1 TB Western Digital Green hard disk, bought in 2011.

The hard disk is not accessible anymore. It gets detected in the BIOS, but does not show up in My Computer. It also does not show up in the Disk Management too.

The system specs are P5GC-MX Asus motherboard, with P-IV processor, running Windows XP SP3.

Until a few days ago, the hard disk was working fine.

My friend says that while accessing one of the partitions, he got an error message. He does not remember the message exactly (he is not very good with computers). He is not able to remember the exact message, which is a problem, because without it, it's hard to determine the cause. But, he says it had format in it.. and he says that the heading was Don't Format, or something like that, and he had clicked Yes. But, after a few seconds, he had then killed that process with Task Manager.

Maybe he accidentally formatted the disk, or partition table? That was my guess.. but it can be another reason too, for reasons below.

I bought the hard disk to my home, to try and access it on my computer, which has Intel i-3 processor, and running Windows 8.

On my PC, the hard disk does not show in My Computer, but it does show in Disk Management. On accessing Disk Management, it popped up a message that the drive is not initialized. It gives the option to initialize with MBR, or GPT. Since it was being used on XP SP3 on an older computer, I chose MBR.. but it failed to initialize because of I/O error.

Als... Read more

A:Hard disk not accessible

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I've successfully installed both Win 7 and XP and able to boot into the selected OS of my choice.Thanks to you for this wonderful post.

However i'm not able to view/access one of my hard disk partitions which is showing as unallocated.

Appreciate your help.


A:Hard Disk Partition not accessible

Hello Yuvi, and welcome to Seven Forums.

It looks like the partition was deleted. You can pick up at step 2 Method One in the tutorial below if you wanted to create a new partition with the unallocated space.

Partition or Volume - Create New

Hope this helps,

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My main Harddisk has just packed it up. It contains some important information. I have removed the hhd and and installed it in my external casing and using to connect through my usb port.When i try to explore the hhd i get HHD is not accessible. i have used GETBACKDATA by Runtime to recover my data but how can i carry out repairs so i can make this drive accesible without losing my information. This drive i don't think is physically damaged. I was originally cleaning my start up registery and when i tried to reboot windows xp never came to the party.. What are some starting procedures i need to perform to make this drive accessible?

A:Primary hard disk not accessible

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Hello! I have two drives(C:, D. I booted up my computer one day and 'D:' was no longer available. I'm not too savvy with partitions or how they work, but I'd like to recover the data lost on the other drive if possible. If not possible, I want to be able to save new files on that partition which includes around 100 gb of space. Any help is great! Let me know if you need more info to help. Thanks!

A:Second hard disk drive no longer accessible.

It is very helpful if you can post a screen shot of the disk management window - stretched so we can see everything - so we can see what is going on.

There is a big difference between having 2 partitions C&D on one hard disk, and having 2 hard disks one C one D.

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i can not boot my windows 7 it show me error as in photo

i boot using usb then when i get to system recovery option my partition size was 0 mb
so i get to cmd command and i type diskpart then list volume and it show that my c drive and d drive is in
i do not want to format my drive there is alot important files
i tried minitool partition recovery wizard in boot mode since i can not enter to windows
and it show me 2 drive
1 is unallocated the type is logical
2 show me 3 partition 10.3 GB - 100 MB - 683 GB and the 3 of them the unused space is 0 B
and the file system is "other" the type is primry
what should i do so i do not loss all my files

please help

A:my primary hard disk c + d are in raw file system

you could try creating a UBUNTU DVD or USB drive and booting from that device , and also running from the device - DO NOT install on the drives
you may then be able to get to the data - depending on whats happened on the drives

If you cannot boot windows on Your PC , this can be a useful test to see if the hardware is working and also if necessary be able to copy all your data to an external harddrive.

This information quite long, as i have tried to provide as much detailed infomation as possible

UBUNTU Stand Alone DVD

Note the latest version of UBUNTU needs a DVD to use and boot from

if you only have CDs then you can use an older version, version 10 or 11 from this archive list

It may be possible to boot from another Operating System
This will at least test the Hardware and also see if you can see the Harddrive and possibly get any of your data off.

If you have another PC with a DVDwriter and Blank writable DVD
Download the ISO http://www.ubuntu.com/download/desktop

UBUNTU version 14 http://releases.ubuntu.com/14.10/
For almost all PCs. The following ISO 32Bit image will work on most machines with Intel/AMD/etc type processors and almost all computers that run Microsoft Windows, as well as newer Apple Macintosh systems based on Intel processors.

You can also run from a USB device now - if t... Read more

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Now this is one hell of an annoying problem:

I had this problem before, wtih my warcraft 3 periodically crashing on me by disconnecting me from battle.net when I play on battle.net. I had no idea how to fix this and decided to scan my hard disk with seatools (I am using a baracuda model ST380817AS) and upon the file system check, it found errors. I decided to format the drives that had errors, which worked. I was overjoyed and becan to restore my computer's old settings when to my annoyance, warcraft 3 crashes again by giving me the disconnect to battle.net. After this, I immediately check my hard disk and the file system is corrupted again!

Could this be my RAM? It should definately not be my software, especially after the reformatation. I am using Infineon RAM (I have never heard of this type of RAM before...), x2 sticks of 512 megabytes in Dual-Channel Mode (supposedly, if my motherboard works).

Someone please help!

A:Hard Disk File System Error....

whats the power supply specs?
to test your ram, use memtest from the link below, 1 stick at a time
post back

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hi sir,im vijay..
im usin 2tb segate new hard disk sir..in my system i cant able to boot my os and also my hard disk ...its showin that hard disk boot failure insert system disk press enter ...i restarted many times its sayin the same problem...in my gigabite mobo bios my hard disk is not get detected sir....the problem is that wen im installin the new os for 2nd time its all went nice only sir but at the completion of the os it wil ask for the user name and password but in my system its frozen sir fully of black screen and i cant able to do anythin so i restarted my system from that im gettin this error as hard disk boot failure insert system disk press enter.....that my new hard disk and all of my data is in that hard disk only..this problem arises wen im installing the os for 2nd time sir...till now its showin the same error sir...

plz help me..im so confused..

A:hard disk boot failure insert system disk press enter

Repair MBR:

Boot From the Windows Install Disc
The first thing you?ll need to do is boot off the install disc, and then click through until you see the ?Repair your computer? link in the lower left-hand corner.
You?ll need to choose the correct installation of Windows and then click the Next button.
And then you?ll get to the System Recovery Options screen, where you can get to the Command Prompt.

Repairing the Master Boot Record:

If you want to restore the master boot record, you can simply type in the following command:

bootrec /fixmbr

You can also write a new boot sector onto the system partition with this command (which is often more useful):

bootrec /fixboot

And of course, if you just use bootrec /? you?ll be able to see all the options.

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I've got a problem with my brothers laptop.

It is an old AMS Power CD, with win. 95. When I turn it on, it begins to boot. The screen reads:
BIOS 1.23, CPU = Pentium 100 MHz
640K System RAM Passed
23552K Extended RAM Passed
256K Cache SRAM Passed
System BIOS Shadowed
Video BIOS Shadowed
Mouse Initialized

Then in a red flashing box in the middle of the screen it reads: "Couldn't reset hard disk system Save to Disk feature is disabled"

Then, "Operating system not found" below

I would much appreciate any help or assistance I can find.

A:Couldn't reset hard disk system, save to disk feature is disabled

I'd bet the harddrive has a loose connection or completely failed. If you don't know how to take it apart and check it take it to an expert.

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when starting my computer, and no boot disk is inserted, i get the error message:"HARD DISK BOOT FAILURE INSERT SYSTEM DISK PRESS ENTER" when a boot disk is inserted, windows xp starts up if no button is pressed after a boot disk is inserted. I cant work out how to boot from hard disk immediately, and it is set as primary boot device. ANY help would be greatly appreciated!!!

A:Hard Disk Boot Failure Insert System Disk Press Enter

Just go into the Bios and (For my motherbaord) in Advanced BIOS Features, set primary, seconday etc boot devices as you like.

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Hi i have a 74 Gb western digital hard drive with C: and D: drives (i partitioned them)
the D: drive has all my gaming applications on it and the C: drive has all the files for windows/and other crap like firefox, etc.

I was once reformatting to XP from Vista and in the middle of reformat my computer shut down causing a major problem. the answer was my graphics card died... now i have an EVGA 256Mb 8600GT with DX10. I brought the drive to my neighbors house and he can use it just fine, it boots and everything... but... the problem is that when i bring it to my house, and i insert the drive it goes to the Nvidia Boot Agent and after a while displays HARD DISK BOOT FAILURE INSERT SYSTEM DISK AND PRESS ENTER. My current BIOS Boot order is Floppy, CD, and then Hard Disk. I don't know why it wont boot, but the copy of XP has been verified and it works great on my friends computer... why won't it start on mine?
Please help me !

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Hey Guys,

Looking for your advice and any links if any...cheers in advance

My Situation

In December 2009 I purchased a Toshiba Qosmio X500 - Model No. PQX33A-00X00J

At the time I upgraded my purchase from Toshiba Reseller BD4U, going from the standard 1x 500GB Sata drive + 1x 64GB SSD... to instead having 2x 500GB sata drives. I purchased with 3 year onsite next business day warranty, that is is now expired.

It came loaded with MS Win 7 Premium Home Edition - but no disks provided.
My Needs
I need/want to factory reset my PC - its starting to run slowI need to re-partition from my existing 4x partitions to just having 2
The Issues
Possibly as a result of upgrading the disk drives at time of purchase, I don't believe I have a hidden Recovery partition in order to do a System Recovery from the Hard Disk Drive - see image of my current partitions attached I don't have Win 7 OS installation disks or Toshiba Driver disks as they should have been installed by Toshiba
My Questions
Do You agree that I DONT have a Recovery Partition - when looking at the partition image? I'm confused on this point coz people say its hidden!?Given I have no Toshiba Drivers Disk or Windows 7 OS disks - what should I do? I'm thinking of downloading Win 7 (use my product key from sticker under PC) and making a disk/USB (but need to learn how)Is this where I get ALL necessary Toshiba drivers for my PC from?Does Toshiba provide a link on its site and instructions on where to get Win 7 ... Read more

A:Qosmio X500/00X System Recovery (Factory Reset) From Hard Disk Drive or Separate Disk

Sorry the model is Qosmio X500/00X

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I formatted my hard drive today and after a reboot I got the message: "Hard Disk Boot Failure Insert System Disk And Press Enter" If I insert my Vista disk, hit f8 at startup and go to boot screen, click on boot from CD, then bypass the boot from CD option it will start Vista. I have checked my boot sequence and it shows booting from the right drive. My hard drives are SATA. Im stumped fellas......

Asus M2N-SLI Deluxe Motherboard
Two Hard drives but the second just for backup (not in RAID)

This is what my system information tool says on the hard drives:

Type Vendor Model Size Interface Temperature
Direct Access Device HDS72258 0VLSA80 SCSI Disk Device 82 GBytes IDE RAID
Direct Access Device Western Digital WDC WD16 00AAJS-60PSA SCSI Disk Device 160 GBytes IDE RAID
Direct Access Device SanDisk SanDisk U3 Cruzer Micro USB Device 1019 MBytes USB USB
DVD TSSTcorp SanDisk U3 Cruzer Micro USB Device USBSTOR RAID

A:Hard Disk Boot Failure Insert System Disk


Changed my partition to active and re-booted, gave me this: "BOOTMGR missing"

Tried to repair with CD and the operating system was showing up on D:, dont know if this is usual but thought it show show C:

Went to Cromt in repair option and tried to rebuild bootmgr with this command:
"bootrec/rebuildbcd" restarted computer............BOOTMGR missing

Was then able to boot from second hard drive (D from boot screen.......finally gave up and formatted again......works fine now.

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I recently upgraded a PC and bought a Seagate Barracuda 250Gb HD. I found how to transfer the XP etc from the old Maxtor 80Gb and went through the routine. All seemed OK until I looked at the new disk which has been reduced to the samesize as the old one!
What went wrong?
Unfortunately, events overtook me and since I started I have had the whole house in a mess with renovations etc. so can't recall exactly what i did. I have tried to re-format the 250Gb drive but it just comes up as 76.2Gb and stops part way through.
Surely the darned transfer hasn't ruined the drive?

A:Transfering file system has shrunk my hard disk

My guess is that the old drive had an overlay installed. When you cloned the drive, that was also copied. It could also be that when you cloned the drive, you copied exact partition sizes.

To fix.
1 Boot with the seatools for dos boot disk and zero fill the seagate drive. Note this destroys ALL data on the drive. Make sure you backup anything important.
2 Boot with your xp CD with at least sp1 already on the CD. Clean install windows.

Your drive will now be 250gig. Note you must have an install CD with at least sp1. If your install CD does not have sp1 or later, you will end up with 127gig or so on the drive.

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Hi everyone.

Going crazy with this. So about 2 weeks ago, my "intel rapid storage technology" software gave me an error. I opened it and saw that one of the disks (2 disk array) in my Raid 0 array, had an error. I reset it back to normal and left it. Then I started to get pop ups saying that files were corrupt over the course of the next few days. My OS still worked and everything worked as usual, except my sound card. I have no more sound from anything plugged into the jacks, only USB connected audio works.

So, I attempted to run a check disk to fix said errors, but I get a message that the drive is not accessible due to a recent software package install "error 766f6c756d652e63 3f1". I went into my system restore and all restore points are gone, except one. When I click on it, it says the drive is not accessible.

Today, I installed 2 new 1TB hybrid drives in another Raid 0 volume (yes I know...but that's what I am using for now). When I went to write the system image, it said the disk had errors and to run a check disk first......which I can not.. I clicked ignore and let it go and write the system image with the errors. When it is done, do you think that I will be able to run a check disk on the new drives (2nd array, since it will not be inaccessible) to repair the errors that it wrote from the bad disk?

I am not sure where to go from here. My PC is still up and running and almost finished copying the image to the two new drives. My hopes are th... Read more

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My Hp pavillion pc started crashing a lot recently and recovery didn't work so I told was advised to get a new hard disk which I did but now I keep getting the above error. I've been into the bios and all seems to be booting from the correct drive
The first time I tried the hp recovery disk it started to work but when it came to reinstalling the software it stayed on 0% for long so I switched off. Maybe that was a mistake. I've run a diagnostics test all passed the test but at the end it said testing: Boot path, error code BIOHD-3.

I tried putting the old drive back in and it was the same as before. But I was still able to go online, albeit until it crashed again.
HP want more money to help even though I brought the recovery discs they suggested.

I really hope someone can help, I've been told there needs be A partition before the software can be installed.

Sorry if the wording is a bit messed up, I am writting this from a mobile.

Thanks in advance,


A:Non-system disk or disk error with new hard drive

Have you tried to run the recovery disks again? They should automatically put a partition on the hard drive.

If it still doesn't work then there's usually one of two different possibilities:
- bad recovery disks
- other bad hardware in the system

I'd suggest running these free bootable diagnostics first: Initial Hardware Diagnostics
Then, if those tests pass, contact HP to return the defective recovery disks and get a new set.

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I was advised by a computer tech to buy a new hard drive because of issues I had with my HP pavillion s3330.
After installing I got a non-system disk error message.
After going into the BIOS to make sure it was booting my HP recovery cd from the the right drive, I ran a diagnostics test and after finding no problems an error message came up at the bottom saying - Testing: BOOT PATH, Error code: BIOHD-3.

I consulted HP who said I need to create a partition for the software to be installed to.
If that is the problem then can anybody assist me with this as I have no clue.

By the way, I'm using Vista home premium.



A:non-system disk or disk error - new hard drive

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My company's computer needs to be patitioned and reformat. The system is still working well. I mean, nothing wrong with anything (weird huh?). Ok the hard disk just need to be 'split'. I mean, make drive C & D on the hard disk. I know how to do that... easy... Then the HD need to be formatted & reinstall windows XP. Ok, easy too..

But the main problem occured before I do anything (partition & format). I have my own bootable CD that I usually use for partitioning & formatting.

Ok, i insert the CD & restart.
I went to BIOS & changed the boot order (1st boot: CD-ROM, 2nd: HDD-0 & 3rd: Floppy). Then restart again.
Ok the bootable CD is excellently loaded.
I typed fdisk, then came the first problem. it says something like 'no fixed disk'. I exit fdisk.
Then I typed format c:, 2nd problem occured. it says something like, 'invalid drive'.
I forgot the error message because the pc is in my office right now. I'm currently at home 'begging for help' So the error message is not accurate. sorry..

I think, if I run the CD, the hard disk will not be loaded (or should I say, hard disk failure). & If I take off the CD & restart again, change the BIOS (1st boot: HDD-0) then windows will load! Weird right?

I don't think my CD is 'corrupted' nor broken because I tried to run the CD from another PC. Yes, I can access the C drive from that PC.

Does anyone have any idea of the ... Read more

A:Can't format hard-disk nor do partition when using boot disk. Hard-disk failure

It sounds like it might be the bootable CD you've created is not picking up the HDD's/partitions.
To eliminate this as a posibility travel to bootdisk and grab the WinME bootdisk and boot from there. If it picks up the HDD you can FDISK and Format from there.
The other option is to boot using the XP CD and let it handle the formatting/partitioning duties...


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hii guys m using hp system on booting up it it says "HARD DISK ERROR" press f2 for hardware diagnostics. i think my hard disk is all right ..what 2 do please help me

A:hard disk corrupt.

If the system isnt seeing it, it is probably not all right. Is this a !aptop/desktop, and has it been dropped? Have you checked the cabling?

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Im my home-theatre PC (Win7, 32-bit) I have 2 HD's:
1 x 500GB, with 2 partitions: Win7OS and Multimedia (photo's and mp3's)
1 x 1500GB, with 1 partition: Video (DVD, MKV and Blueray)

Now my Motherboard had some problems with SATA2. This Mobo is sent back to my supplier and it takes some time to recieve it back.

So to use my multimedia files off the hd, I connect this hd on my other pc (Win7, 64,bit). The HD is recognized in bios. Now the pc boots real slow (about 5 minutes) with hd led blinking rapidly. After the boot the 'new' hd is not seen by windows. In the eventlog I get a lot of error messages of accessing the hd. The other hd has the same problem.

I think the broken mobo has damaged the mbr of both hd's. Its hard to believe that both hd's are broken on the same time. Is there any way to fix the hd without formatting it?

greetz Ricaro

A:Hard Disk corrupt

Do the drivers have drive letters in Disk Management?

Hard Disk Partition Letter Missing in Windows 7 - Fix

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This sounds straight forward, but I can not figure this out I am new to this. I have a Etower 500 MHz with 192 mb's of memory and 4 gig hard drive. I used partition magic 3.5 to partition the drive inorder to try and install DOS and win98 and maybe linux. I am following the instructions from this web site here>> http://www.xperts.co.za/multi-boot/ I am using the disks that I made from downloading from this site referring to REUEL Boot disk this disk took me through the entire process. It all went great until I rebooted and I keep getting Non-System disk or disk error I have no disk's in the drives. I even installed win98 and all it did was go straight to windows. With in windows I could see the drives I partitioned all of them except the one that windows was actually on. I have done this again and again trying to see if I did anything wrong. Anybody know what is wrong?
Also can anyone tell me how to get free dos I can not figure out what files to download. The one that I am trying to install now is suppose to be mini dos 6.22. I am really new to dos so I am doing a lot of guessing.

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Ok first off I want to say I've searched and searched and searched to no avail in trying to find a solution to this I've come to the conclusion it's software and not hardware based. Let me start from the top.

I've had an older computer (HP Pavilion a408x) out of commission for a while due to a 'sploded psu. I finally get around to ordering one, install it and everything is good. I bring it back to my office and hook it up to the internet and as expected there's updates. So I up date it and after the updates are installed the computer restarts automatically (weird yes) and as it's coming back on it detects errors and runs CHKDSK. So I let it run and it gets to part 2 of 3. At this point in time my partner is really needing to print sometime and all computers print through this computer. So after about 45 minutes CHKDSK is still on part 2 at only 15%. So I'm like "screw it" and manually shut down and restart. It's at this point I get a "primary master hard disk failure" at the boot screen. Letting start up continue I get a "Stop : c000021 unknown hard error \systemroot \system 32 \ntdll.dll" At this point I realize something is delectably wrong.

Found this thread, which didn't help much. At some point the c000021 error stops and I start getting "disk boot failure insert system disk and press enter" and I found this thread, which didn't help much either. I have also been searching other sites as well.

Here's what I found ou... Read more

A:Hard Drive not found "disk boot failure insert system disk and press enter"

Anything would be super helpful, even if it's bad news. I just need to know if I can get this remedied or not.

Another thing I noticed is that the HDD activity light on the front of the computer does not blink or show any activity.


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How to repair corrupt
external hardisk...??

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I'v been on this site since this morning but have'nt really found my specific problem fix, I've found the prob just things I've tried with no remedy. My cd rom is recognized by windows in the device manager, it was working fine, when I insert a disk it will say D:/ is not accessible, drive is not ready.
I've tried different cd's, I've also tried the boot disk saying same thing not accessible. I've also tested to see that the motor is working properly ....ie. put in disk wait till green lights flash open tray to see if disk has moved, and it does. I've checked inside to see that all the cables are connected. When I goto double click my computer and it shows the drive, my D: drive shows but it usually shows the title of the cd also, now it does not show the title. It has done this before but it just started working on its own I dont remember exactly what I did then it was awhile ago. The only think I can think of that I havent tried off here is cleaning the drive. I havet cleaned the drive since I bought the computer heehee (4 years) but could that really fix the problem? I'll feel pretty stupid if thats the case haha. Anyway I'm using win95 b, cd rom is 24x Creative any neat little fixes other than cleaning would be soooooo appreciated (of course I'm off to the store to pick up a cd cleaning thingy now )
Thanx so much.............This site has helped me out with everyother problem I've had, I'd be broke w... Read more

A:disk not accessible (CD ROM DISK) problem

If a boot disk (with correct drivers) does not work, then cleaning is the only option.

If that doesn't make it work, there is something physically wrong with the drive.

In Windows it could be lots of things, but from a boot disk... dirt or a bad drive are it.

Get free stuff and help out a poor computer tech:
LarryCore begs for money

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I've been getting the following in the event viewer the last 3 days. The file structure on the disk is corrupt and unusable. Please run chkdsk utility on the volume HP. I've ran check disk twice and I still get it. I also downloaded WD Lifeguard Diagnostics and ran the Smart Test and the Extended test and both passed with no problems.The The computer seems to be running OK. I also checked the file system and it's OK. I get Ntfs Event 55 Task category (2). This is what it shows.

Log Name: System
Source: Ntfs
Date: 2/11/2011 8:01:04 AM
Event ID: 55
Task Category: (2)
Level: Error
Keywords: Classic
User: N/A
Computer: Richard
The file system structure on the disk is corrupt and unusable. Please run the chkdsk utility on the volume HP.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<Provider Name="Ntfs" />
<EventID Qualifiers="49156">55</EventID>
<TimeCreated SystemTime="2011-02-11T14:01:04.172372500Z" />
<Security />
<Data>HP</Data>... Read more

A:The file structure on the disk is corrupt

Did you run chkdsk /r ?

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This is my first post. So please bare with me. I am trying to image a corrupt hard drive and retrieve data which is did not get a chance to back up from it. The 40 GB hard drive belongs to my Dell desktop running windows XP. After exhausting everything possible to boot from the disk, I took it out of the desktop and placed it in a PATA harddisk enclosure and connected it to my son't laptop:
Tech Support Guy System Info Utility version
OS Version: Microsoft® Windows Vista™ Home Premium , Service Pack 1, 32 bit
Processor: Intel(R) Pentium(R) Dual CPU T3200 @ 2.00GHz, x64 Family 6 Model 15 Stepping 13
Processor Count: 2
RAM: 3000 Mb
Graphics Card: Mobile Intel(R) 4 Series Express Chipset Family, 1308 Mb
Hard Drives: C: Total - 114115 MB, Free - 37361 MB; D: Total - 114116 MB, Free - 114021 MB;
Motherboard: Gateway , , 96.05 , QTFCPP83715214
Antivirus: CA Anti-Virus, Updated: Yes, On-Demand Scanner: Enabled

​I connected the bad hard disk to laptop via usb; It shows the F: drive, but no volume; it would not open without formating. So I decided to boot from Ubuntu rescue remix v. 10.10 live cd:
Made a directory "recovery" in /dev/sda3 (which is the DATA volume in Vista)
plugged in the ad drive /dev/sdb and ran: sudo ddrescue -r 3/dev/sdb image log

This produced bunch of sector errors.... I/o errors
copying not-tried blocks...
ddrescue: write error: no space left on device

​Does any one have any idea what to do? Please help.

A:corrupt hard disk image problem

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Dell máy tính xách tay c?a tôi ?ã ???c mua vào ngày 3 Tháng N?m 2010 t?i Log Angeles, b?o hành t? tháng 3,2010 ??n ngày 31 tháng 8 2011. Bây gi? trên ??a c?ng ???c Bad v?i # 105 mã l?i. Tôi ?ang s?ng t?i TP H? Chí Minh - Vi?t Nam. Tôi không th? s? d?ng máy tính xách tay c?a tôi khi tôi ??n nhà. Tôi không bi?t làm th? nào ?? làm, thay th? x?u ??a c?ng ? ?âu? Tôi hy v?ng dell c?ng ??ng giúp ?? tôi.

A:Corrupt Hard disk of Dell Laptop

Chào bác. Bác có th? ??n trung tâm ??i di?n phân ph?i máy tính xách tay Dell ?? ???c s?a ch?a ho?c b?o hành theo ?úng quy ??nh c?a hăng. Ngoài ra n?u c̣n th?i gian b?o hành bác nên ?em theo các gi?y t? liên quan c?a hăng, t?i c?a hàng bác hoàn toàn yên tâm v? ch?t l??ng d?ch v? c?ng nh? giá thành s?n ph?m

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Lately I had problems playing video-files (hd content, mkv container) on my WD HD TV. Turned out that the files were corrupted when after copying to the usb disk. First I was afraid my Intel X25-m was the culprit, but windiff proved that the error occurred after copying, and there was a difference between the file on my SSD and the copy on the usb disk.
After trying all the USB ports on my laptop (MSI pr200, T7700, 4GB, Win7 HP 64), the CABLE proved to be the culprit. I use different cables, the one causing problems was an old motorola razr....
After trying the cable that came with the 500GB Verbatim USB disk the problem is gone, and windiff says the files are equal.
Just to let you searchers know (fingers crossed!): issue seems to be resolved by using a good cable.

A:Files corrupt after copy to usb hard disk

Unfortunately problem not solved.... today again a copied mkv of 4.36 GB got corrupted when moved to the verbatim 500GB USB HD.... The files are different after copying, according to windiff, and my WD HD TV stops when getting to corrupted parts (more than 1).....
The quest will continue to find the culprit.... Next I will use a different HD in a different enclosure.

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Hello all … I have a two part question, which requires a bit of background. I am running XP Pro SP2 in with an AMD Anthlon 64 3000+ processor (1800 GH) on a Gigabyte motherboard and 1 Gig of RAM. I have been running with two IDE drives (61 Gig & 82 Gig respectively) and a WD 250 Gig SATA drive. The WD drive is divided into three partitions: the C: (Operating System) partition; the D partition which contains other applications; and the E partition, which contains all of my media files (music, movies, audiobooks, etc.) and is over 150 Gigs.

Recently I experienced a problem whereby my computer would shut down after a few hours, and on reboot I would get the message “NTLDR is missing; press CTRL+ALT+DEL”. Thanks to some great support form this forum, I realized it was a heat problem, so yesterday I took my computer in to get the power supply & fans updated. They checked the WD hard drive and advised me that the disk was corrupt, and needed to be replaced. It’s still under manufacturer’s warranty, so I bought a new, identical WD 250 Gig SATA disk and decided to move everything from the old WD to the new WD, remove the old WD disk & send it to the manufacturer, and when I get it back I’ll have an addition 250 Gig SATA hard drive.

After the new disk was installed, partitioned the new WD the same as the old WD and ghosted the C: & D: partitions on the old WD with Acronis and copied the data onto the new WD. I then changed the drive letter for the “other appli... Read more

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New to the site and I'm looking forward to learning a lot. I have an Asus k5e3 laptop and lately it has been giving me the Windows Error Recovery system did not shut down properly. I did the repair option and it said the problem was "system volume on disk is corrupt" Researched it and I guess my hard drive is about to die. My question is when i replace it, can i use the recovery disks for my laptop or will i have to buy Windows 7 again. Any help will be greatly appreciated. 


A:system volume on disk is corrupt

Hi sassenach01 You can use the Recovery disks that came with your laptop to reinstall Windows on a new hard drive. However, are you sure that your hard drive is failing? We could check it together and see if it is or not. The "System Volume Information" folder is where system restore points are kept, maybe they are just corrupted and needs to be deleted. In order to delete them, right-click on Computer and select Properties. From there, click on Advanced System Settings in the left pane and click on the System Protection tab. Click on the Configure... button followed by the Delete one at the bottom of the window to delete every restore points present on the system. Once this is done, let's check the health of the drive.Please download GSmartControl and save it to your Desktop.Extract gsmartcontrol-0.8.7-win32.zip to a folder, double-click on gsmartcontrol.exeA list of hard drives will appear, single-click each disk to see Drive Information and identify your drivenote: most machines will only have one or two entries, but an easy way to identify your drive is by its size.Double-click on the hard drive to see detailed Device InformationClick on the Attributes tab, do you see any red or pink entries like the ones below? Please list the names in your next reply if there are any.Click on the Perform Tests tabSelect Extended Self-Test and click Executenote: this test can take several hours to runAllow the test to complete, the results will be displayed at the bottomPlease post the r... Read more

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This is my issue...I have a Toshiba Satellite L3550, AMD TurionX2 64, Vista Home Premium.

I woke up yesterday morning and got a "Windows Error Recovery" Windows failed to start. A recent hardware or sofware change might be the cause.....I tried both "Launch Startup Repair" and "Start Windows Normally" and neither have done anything.

So I tried doing the "Launch Startup Repair" , its asks for a keyboard layout - selected US and hit "NEXT". From there it takes me to (after a few minutes) System Recovery Options - "select an operating system to repair and click Next." But nothing populates in the box. It states at the bottom that "If you do not see your operating system listed, click Load Drivers to load drivers for your hard disks." When I click "Load Drivers" I get a message to insert the installation media for the device and click OK to select the driver. I don't have any disks, will have to search hard to possibly find it. So I instead click the "Next" button...This brings me to several options: Startup Repair (I did this 2x so far, 1st taking 3 hrs) with no success, System Restore (I have no backup point to restore it to), Windows Complete PC Restore, Windows Memore Diagnostic Tool (this is where I found the error stating "System volume on disk is corrupt"), Command Prompt and TOSHIBA Recovery Wizard.

I don't want to loose everything on my computer so tryi... Read more

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Hello,I am having problems with Windows Vista and don't know what caused this.When I turn on the computer, it brings that loading image with the green bars and then it restarts right after that. It does the same thing when I try to login in Safe Mode.I ran System Repair many times, but it can't fix the problem. When I scroll all the way on the bottom of the report it says "system volume on disk is corrupt." I've also tried command prompt and have tried the following commandsFound these commands by searching on the net and thought might fix the problem so I gave it a shot and no luck.bootrec /rebuild - it didn't give me an option to types yes
then tried bcdedit /export C:\BCD_Backup
ren C:\boot\bcd bcd.old
bootrec /rebuildbcdI took the hard drive out, and plugged it on my other computer's external USB device and backed up my files onto that computer.At last I gave up and though I should just do a fresh recovery, but I can't because I can't find the CD-Key. I checked everywhere for the CD-Key -- on the computer, to the CDs that came with the computer, and all the paperwork and couldn't find it anywhere.So does anybody have a solution to fixing this OS, or how I can recover my CD-KEY at least with some program on a bootable CD?Thanks

A:System volume on disk is corrupt

hi,,, on your pc somewhere there is a little sticker with the os product key,,, its usually a blueish green and pink thing with barcodes on it and says Micro$oft on it,,, at the bottom it says product key then the key follows,,, try this,,,,,
also open start menu, right click on computer and click properties and scroll to the bottom of page,,, it says product id,,,
good luck.

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after 10 minutes of laptop being on i get a bluescreen then reboots (windows 7 pro) i ran start up repair and looked at details and it says system volume on disk is corrupt ! it all boots up fine aswell. still boots up now lol. ANY HELP WOULD BE GREAT AS I AM FAIRLY NEW WITH LAPTOPS, THANKS IN ADVANCE. ( GOT ANOTHER PROBLEM, I UPDATED ADOBE FLASH PLAYER A FEW DAYS BACK TO 11.5 r502, AND ALL IT HAS DONE IS CRASHED EVERYTIME I TRY TO PLAY FARMVILLE 2 ON FACEBOOK, NOT ONLY FACEBOOK ITS EVERY GAME I TRY PLAY)

A:system volume on disk is corrupt

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I'm having problems with my computer and was wondering if I use it in its present state to create a System Repair Disk - If those same problems will be written to the disk and used for repairs.

In other words, is the disk using my current registry and whatnot to create the disk or is my system creating the disk using some sort of disk image to create the repair disk.


A:Corrupt System Repair Disk?

If you are unable to boot your Windows 7 to create a Windows 7 System Repair Disc, then you could create it on another computer to use on your computer. You can also download a repair disc image on the net. There are sites that sell the images but I remember getting mine for free a while back. Not sure where there were.
AFAIK the health of your registry doesn't matter when making a repair disc.

Download Windows 7 System Recovery Discs &#x2014; The NeoSmart Files

You can also use any Windows 7 CD (matching your version) to repair your system. Borrow one from someone if you have to.

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Hi everyone. Here's a complex problem.

While I was on my PC as usual one day, everything froze except the cursor, and I had to reboot. But upon restarting, I was presented with two options. 'Repair (recommended)' and 'Start Windows normally'.
(The following happens every time, and is still valid, nothing has changed).
Upon selecting 'repair', startup repair starts, runs, and it identifies the problem 'System Volume on Disk is Corrupt'. Same is the case when I boot with the Windows installation DVD and try startup repair.
'Start Windows Normally' brings up the 'Starting Windows' screen, it stays there, no animation takes place for about a minute, and then the Windows logo animates in, and the computer restarts.

Please note:
I'll refer to:
New HDD on which I installed Windows: Spare HDD
The HDD with the corrupted Windows: Bad HDD (has 4 partitions, 2 for data and 1 for windows, and 1 system reserved partition). it is 1.5 years old.
Corrupted Windows partition: Bad partition
P.S. I don't have an image/backup of the bad partition.

What I did next:
Installed Windows 7 on a spare hard drive, and attached the bad HDD as secondary. All my data was found to be safe. Except for the partition which is supposed to be the Windows partition. It is not getting recognized as a readable partition. Windows sees it as 'raw' partition, unformatted. Of course, I won't format it.
I installed PartitionWizard and checked the contents of the unreadable partition. All the ... Read more

A:System Volume on Disk is Corrupt

I dunno why it is showing Windows 7 installed on Disk D:, while it is actually installed on C: ??

Could it be a failing HDD? It's only 1.5 years old, just so you know. I personally wouldn't expect a 1.5 years old HDD to die like this...
Or is it?

Check the hard drive with the manufacturer's diagnostic tools.
Hard Drive Diagnostics Tools and Utilities (Storage) - TACKtech Corp.
HD Diagnostic

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When it is turned on it goes to the windows recovery screen then to the Startup Repair Screen which concludes that 'Windows cannot repair this computer automatically'. In the problem details drop down Problem Signature 07 is 'Corrupt Volume'. I have removed the hard drive and run a diskcheck on it and that found four occurrences of a bad block.

I intend to get a new HD to replace this disk and I have secured all the data that I had on the disk. Unfortunately I do not have any recovery media. I understand that I can purchase recovery media from Toshiba. I wish to be assured that, before I start this expense, that my proposal makes sense. Is there anything else I need to be aware of?

Many thanks

A:Satellite Pro C850-10U - Corrupt Hard Disk Drive


At first I must say that you should upgrade your notebook with SSD and not HDD. This will increase notebook’s performance. SSDs are not expensive anymore so I think it is the best option for you.

Recovery media: if you don't have original recovery media for your machine you can order it on https://backupmedia.toshiba.eu/landing.aspx

I hope I could help you. If you have more questions feel free to ask.

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Hi all..

I have a hard disk that is actually a laptop internal hard disk. Few days back i dropped my laptop from the roof and broke it. There was nothing that could be recovered from it but this hard disk. So i decided to put this hard disk in a hard disk case and use it as an external, for backup purposes. It was working fine and all my data that used to be in my laptop was still present.

A couple of days back my windows (on my desktop) got corrupt so i thought to first backup all my data to this laptop hard disk and then reinstall windows. For that i used ubuntu 11.10 live cd. I copied all the data and then reinstalled windows. But when i connected this disk to my computer and clicked on the partitions of this disk, an error came up "The path you specified is not present". I guess that the disk is corrupted though my data is still there on the disk.
Can come one please help me to recover the data.

Thanks in advance....

PS: Please excuse my english i'am not a native english speaker...

A:Solved: Data Recovery from Corrupt Hard Disk

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Hi. I am a newcomer here and looking for help with my Dell Studio xps 13 laptop running W7 sp1.

System will not boot up.
System repair does not work.
Will not boot in SafeMode.
System Restore cannot find a restore point.
Factory Image not found, and unable to reinstall from disk.

I tried the steps below (from Poyol) and got further in the start up process and I actually thought it was going to boot up but still won't open os.

Is there any hope for this Hard drive or is it dead?

Or is there a way to fix the corrupt boot sector?

Thank you in advance for your help.



First things first I'll need you to;

1) Insert your Windows 7 DVD into the disk drive
2) Boot your computer up - if necessary press any key to boot from disk
3) Click on 'Repair your computer' at the bottom of the window that appears.
4) On this screen select 'Command Prompt'

On this new screen type in;

bootrec.exe /fixmbr
bootsect.exe /nt60 all /force
Once this has done type in the following;

attrib -h -s C:\boot\BCD

del C:\boot\BCD
bootrec.exe /rebuildbcd
Hopefully you should see a success message, letting you know that the BCD has been rebuilt successfully

If so;


shutdown -r -t 0
THEN turn your computer back on, remove the Windows 7 DVD, and hopefully this should have fixed your problem.

Once you have carried out these steps, please let me know of the resolution, be it good or bad!

Thank you


A:boot sector for system disk is corrupt

Hello Mark, Welcome to TSF

How old is your Dell Studio xps 13 laptop?
For the amount of money that Dell are selling them for, I would expect that it might still be under factory warranty at least, or if not, did you purchase an extended warranty when you bought it?
Another thing, did you get any installation discs with this machine, because they will do the trick; if not, you might be able to contact Dell Customer Support for a set.
They might cost anything up to $50, but don't quote me.
Let us know.

Kind Regards,

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My dad asked me to have a look at his laptop as it will not boot.

It seems something is corrupt, when booting it will sometimes get to the splash screen but then stays there for ever as if caught in a loop (hard reboot only option), other times it will attempt the 'startup repair', but this again just runs for ever without finishing (left it for over 5 hours!!).

After cancelling the repair process I managed to get on to the 'system recovery options'. Startup repair does not work, no system restore points have been made! No system image to use, memory diagnostic checked out fine.

I did manage to get a diagnosis report up (can't remember how I did it) and at the bottom of the report was this message:



Not sure what to do now. I was thinking using a W7 disc to somehow repair the system volume (if that is possible), however although I have managed to get hold of a W7 disc off a friend it is a 64bit disc and I have no idea whether the laptop is 32bit or 64bit, how can I check this. I have searched for the specs and havent found a definitive answer.

Acer Aspire 5542
3G Ram

I also have the X15-xxxxx number as I read this can tell me what OS version it is, but it didn't seem to help.

Anyway, hope someone can give some advice, I will be back at my Dads house tomorrow, so if you need any more info I will get that then.

A:[SOLVED] System volume on disk is corrupt

Hi the user manual should provide some info http://global-download.acer.com/GDFi...92824265679298
specs also Acer Aspire 5542-5547 Overview & Specs - Laptops - CNET Reviews
and this should help with the other issue How To Write a New Partition Boot Sector in Windows 7, 8, or Vista

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Missing operating system.

That is the message I get when attempting to load windows 7 ultimate. Hard drive is 1 tb samsung, broken up into 3 partitions. The primary/system partition has the windows on it. That is the ONLY one that has a problem. Other 2 partitions unaffected and work perfectly.

Using my installation disc I attempted to run startup repair, it could not fix it. I attempted to run some bootrepair commands from the console of windows recovery to no avail. I am fairly certain this problem is fixable without formatting the hard drive. I have already backed up 2 the other partitions, but would really like to get the "unformatted" partition up and running long enough to get the data off it. TIA for any suggestions.

I found this site by using some tips from this ealier post w a very similar problem i belive

Corrupt Boot Sector for system disk Partition i

A:boot sector for system disk is corrupt

I would do a re-install of the OS as that may be quicker and more likely to succeed.

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Hi All: When I run Disk Defrag in XP I get this message:
Disk Defrag cannot continue prescan because there is corruption in file:

After looking in several forums, it seems that you can delete what is in the downloads folder. I tried, but it won't let me delete it because it says SP3GDR is corrupted.
Any Ideas how to take care of this so I can run the Defrag?
Thanks, BigRC

A:Disk Defrag error message about corrupt file

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