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Boot-Sector Brain Surgery

Q: Boot-Sector Brain Surgery

Hi all,
Haven't made a post in a long time and I'm surprised my account is still active.

Here's the verdict; my laptop came shipped with an OEM Windows Vista installation. I wanted to dual-boot it with Windows XP but needed XP on the C: partition (plus the issue with older version of windows should be installed before a new version is installed) forced me to re-format, install XP SP3, install all the drivers and bring me to what it is now.

My laptop is fully functioning with Windows XP. I have a Linux Ubuntu 8.04 CD, Windows Vista OEM dvd and windows xp sp3 cd at hand. I want to dual boot my system with either windows vista, linux, or both.

Please answer these two questions:

1.) If I create a new partition and install Vista on the new partition, is it possible to upgrade the Vista installation to Windows 7 WITHOUT DOING ANY HARM AT ALL TO THE XP PARTITION OR IT'S BOOT LOADER? So I will then have a dual boot system with Windows XP and 7 (and both OS's fully working)?

2.) If I install Linux in a new partition alongside my XP partition will it be possible to install vista on a third partition AFTER I have installed Linux? So the order in which the operating systems have been installed would be:
- 1. Windows XP installed first
- 2. Linux Ubuntu installed second
- 3. Windows Vista installed third

Any help will be very much appreciated (as long as it's from someone who knows what they are talking about).


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Preferred Solution: Boot-Sector Brain Surgery

I recommend downloading and running DAP. It can help sort out any driver and firmware related issues on your system

It's worked out well for many of us in the past.

You can download it direct from this link http://downloaddap.org. (This link will open the download page of DAP so you can save a copy to your computer.)


Good morning, all! I would like to transplant a Samsung EVO 850 SSD into my Ideapad Z580 notebook from another machine of mine. The SSD has a different OS on it (Linux Mint) than what is on the Lenovo's HDD (which is Windows 8.1), and it is also half the size of the HDD (SSD=250GB, HDD=500GB). When I attempted the transplant, the Lenovo would not boot up past the opening screen and gave me an error message that stated something along the lines of (it went by fast, so I couldn't get the exact wording) "PCI (?) media test failure, please check cable." When I put the original HDD back in there, it booted up as though nothing had happened. I'm wondering why this happened, and would putting a new SSD in there to do a clean install of my OS of choice be preferable? Also, when I attempted to use both a USB drive and a disc to install my OS of choice on it, I could not get it to boot from either of those options in BIOS. What am I doing wrong, here?

A:Ideapad Brain Surgery Not Working!

I would expect it to work.  Are you sure the SSD is good?

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Hi I think there,s a problem in here. I have BB (Comcast) running XP sp2 IE sp2
i'd sure be grateful if someone would please take a look ay my HJT? My puter is running so slow at times and doing other strange mysteries. I thought at one point I may be have a trojan, but NIS , S&D, Spyware Dr and Spywre Blaster & Ad Aware don't pick anything up. Thank you all. Bad

Logfile of HijackThis v1.99.1
Scan saved at 10:28:57 AM, on 5/1/2005
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

Running processes:
C:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
C:\Program Files\Common Files\Symantec Shared\SNDSrvc.exe
C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
C:\Program Files\Common Files\AOL\ACS\AOLAcsd.exe
C:\Program Files\Common Files\AOL\TopSpeed\2.0\aoltsmon.exe
C:\Program Files\Common Files\Symantec Shared\ccProxy.exe
C:\Program Files\Common Files\EPSON\EBAPI\SAgent2.exe
C:\Program Files\Norton Internet Security\Norton AntiVirus\navapsvc.exe
C:\Program Files\Norton Internet Security\Norton AntiVirus\SAVScan.exe
C:\Program Files\Common Files\Symantec Shared\CCPD-LC\symlcsvc.exe
C:\Program Files\Common Files\Symantec Shared\Security C... Read more

A:i tnink this puter needs some brain surgery

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I am using a Lenovo G460 Laoptop with Windows 7 ultimate, Core i3, 3 GB Ram configuration.

As my computer had become slow, I decided to format and re-install a fresh copy of Windows 7 last month. After installation, it displayed an error for a fraction of second saying, windows couldn't install properly. I couldn't read the full message properly as it appeared just for a fraction of second. However, as the windows worked fine, i did all my drivers installations and switched off my laptop. The next day, it was unable to start and automatically did a chkdsk operation and found out many unreadable files and got stuck in the middle during the operation. I had to press the switch on/off button to restart it again and again did a windows installation. Since then, I have to install a fresh windows near about everyday when i switch on my laptiop. On doing the chkdsk operation, sometimes it shows no problems and sometimes it shows many unreadable files.

I am in a state of confusion whether its due to some bad sector/ some hardware malfunction/ any boot sector virus or any other problem. I think if it would be a bad sector then every time the chkdsk operation should detect it, which it doesnt. Please help.

A:Confused whether its a Bad Sector/ Boot Sector Virus/ Other problem

If you run chkdsk without the /r switch, nothing is accomplished. You must run chkdsk /r

Alternatively, you can download the hd diagnostic utility from you website of the hd manufacturer, burn it to cd, and run that.

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For you guru types:

Built this machine couple of years ago - running smoothly until I loaded PNY 6600GT AGP -- Don't recommend it if you are running KT133 VIA Mobo from Asus (FYI). So here's the problem:

70.60 drivers permanently scraped my VGA stability - restore, repair etc all failed and I had to reload XP. So be it - I was way over due. Now the fun starts...

Initial problem (STOP 0X0000004) was resolved first by deleting the Drivers.cab file from \windows\driver cache\. Actually that was a recommended action from a trusted source that went no where. I replaced the file from another XP machine. (source of 2nd issue below?) This was resolved but see below.

The reinstall was on partition (2) XP D: where my partition (1) C: is 2K. The boot.ini file got scrambled (this isn't new unfortunately) and I had to do a new file and load it onto the C: root. What is wacked it that if I set the 2K partition as (1) and the XP partition as (2) -- As they should be -- I get the famous Hal.DLL error. So I set them in reverse and 2K will boot, but XP locks up. I have solved this before by reversing the parititions but this time no dice.

The lock up occurs in both normal and Safe mode boots ... I have pulled everything but the Ethernet, Sound & video cards.

Any assistance would be appreciated b/c I believe I am close to cracking this...

Please keep the n00b suggestions firmly in your cyber pocket. I'm looking for an ace...
&nb... Read more

A:Dual boot W2K / XP: 2K launches, XP won't ... brain teaser

If you have W2K on the C-drive, and then install XP on the D-drive (second partition on same disk, right?), XP should automatically add its own startup-line to c:\boot.ini and replace the W2K-files ntldr and ntdetect.com with XP-versions. I assume that XP also alters some bits in the MBR, but that is only my assumption.

Boot.ini would look something like:
[boot loader]
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINNT="Windows 2000 Pro" /fastdetect
multi(0)disk(0)rdisk(0)partition(2)\WINDOWS="Windows XP" /fastdetect

with W2K as the default in above sample.
Starting from the XP-CD you could do a Repair and do FIXBOOT and FIXMBR.

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Long story short, I have a computer loaded with Windows 7 sp1. It has a 300Gb hard disk and a 2Tb hard disk. These two disks were loaded with Windows 7 at separate times, the 300Gb one first, then the 2Tb one. Now the 300Gb drive has failed, and the 2Tb
drive will not boot. How can I fix this?
Using Original Windows Install disk with repair option (Version of Windows not compatible with repair disk).
Using a System Repair disk results in the same error message.
The old failed hard disk is no longer in the system, but when it was working with both drives installed, on boot I would get a list of the two installs asking which to boot from. The new install was always first in the list, so it was not a problem. Now
that the 300Gb drive has failed, the computer just boots immediately to BIOS.
How do I make the computer boot from the 2Tb hard drive without loosing everything on that drive? Is there something that can restore, or reconfigure the master boot record to allow booting from the good drive?

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Hi, I have just recently gotten a new computer which came with Vista. Previously what I have done with any new operating system I got was installed it into my old computer. However, I came to find out you can only have one computer assigned to each cd, unless I wanna buy another one, which is unecessary.

I wanted to get rid of Vista and return to XP but the XP disc would not install because of multiple errors, such as missing ntldr.

So I decided to use deriks boot and nuke to clear the hard drive, and that went smoothly.

Now, here is my problem... When I insert the XP cd it spins for a while and eventually comes to an error screen with:

"no boot sector on hard disk"
"CARDBUS NIC boot failed"

30 seconds or so later I also get this message

"No bootable devices"
Also, when I just start the computer normally, it does go to a screen that says no operating system found, which makes sense.

The weird thing is that the Windows Vista CD still starts up and goes to the installation area when I boot from CD drive, So I know my CD drive is working properly.

I have tried the XP CD in another computer and it works fine.

The computer with the problems is a Dell Inspiron 8500.

Sorry if this has been answered somewhere but I grew tired of reading through threads only to come to a very general solution of booting from the XP disc, which wont work.

Since I used deriks boot and nuke, I have not formatted and repartitioned the drive ( I don't know i... Read more

A:Solved: Windows XP Disc won't boot - no boot sector on hard disk..

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I have a Gateway PC that has been stuck in a Windows Update loop....installing 3 of 3.....for several days now. I am unable to change the boot device order due to the following error: "Failed w/ user password to Load Boot Menu. Press F1 to Resume."

Safe mode failed.....auto repair failed....last known good failed.....safe mode w/ command prompt failed. Upon hitting F1 the system goes back into the update loop.

I contacted Gateway support and they gave me instructions for doing a "Restore from Factory Default" using ALT+F10. I am immediately presented with this error: "BootSector Write!! VIRUS: Continue (Y/N)?"

I'm at a loss. I know how to clean boot sector viruses; however, I don't have a clue what to do if I can't boot to an optical drive. Any ideas??


System Specs: Vista Home Premium 64-bit w/SP1
Gateway desktop DX4300
Norton Antivirus 2009

A:Solved: Boot Sector Virus but can't boot to optical drive

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I have a laptop which has odd startup behaviour and which reflects the behaviour of another laptop, my sisters laptop that I was fixing.  I copied files from my sisters laptop to my laptop but scanned her disk before hand, but think now I've copied across a boot sector virus or something worse.
The beheviour of my laptop is when I press the start key, the button and power light come on, the fan comes on at a low speed, the dvd is checked, and then it repeats this behaviour with the lights going off, then after about 30 times on/off, it finally comes on, with the fan constantly on. But no screeen, no boot.
My sisters laptop reported almost the same behavioir. My laptop Windows 10. The other laptop Window 8.

A:Laptop will not boot, suspect boot sector virus or worse.

I've moved this to the more suitable forum,

Am I infected? What do I do?
This is now closed.

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I run a home-built dual boot system. Specs:
W2K Pro + all service packs current. Win XP Pro + SP 3. Intel P 4 2.4Ghz, ASUS P4B266-C mobo, 80GB HDD, 2GB DDR RAM.
On the W2K Pro partition, I have Avast AntiVirus installed with all signatures current. On the XP Pro partition, I have AVG with all signatures current. I also run Spybot S & D. I run FireFox on both partitions.
Iwas on the XP Pro system today and was booted off FireFox and my system rebooted. During a reboot, I always get the option to either boot to W2K Pro or WXP Pro. At that screen, I get a warning that I have a boot sector virus on my hard drive. I am advised to put a clean floppy in and reboot and asked if I want to continue.

Long story short, I was able to get past the prompts and boot up to W2K Pro. I ran my Avast AV and came up clean. I also ran SpyBot and came up clean. I was able to get back to the XP Pro partition and ran an AV scan a it found a couple things:

MsUpdate.exe and Trojan Horse downloader.generic7.AOVP

It also changed/cleaned up:


The PC seems to work fine except for the 'boot sector virus' warning and prompts when I boot. I'm a bit reluctant to shut down at this point. Any ideas how to proceed?

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Hi All,

I have a Dell Laptop with Win 7.

I recently used TestDisk to try to recover a lost data partition (not my system partition) but when I rebooted the Dell system utilities partition booted (not Windows).

Some digging has revealed that Windows was on C:\ but is now on F:\.

I have tried a number of things to set things straight including:Boot Windows recovery CD and run "Startup Repair" Wizard - this made some changes but now the system just continually reboots without displaying anything after the BIOS screen
bootrec.exe /FixMbr - completed successfully
bootrec.exe /FixBoot - ERROR: "The volume does not contain a recognised file system."
bootrec.exe /ScanOs - does not find any Windows installations
bootrec.exe /RebuildBcd - does not find any Windows installations
bootsect /nt60 all - completed successfully

Any further ideas or any diagnostic info I can provide to assist?

Thanks in advance!

A:Boot problems - boot sector messed up using TestDisk?

Boot free Partition Wizard CD to post back a camera snap of the maximized Drive Map and listings. This will be immediately revealing so we can help you best.

Screenshots and Files - Upload and Post in Seven Forums - Windows 7 Forums

Absent that your next best steps are described in Step 8 in Troubleshooting Windows 7 Failure to Start

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Running Windows XP.

Is there a way, maybe some software, preferably free or low in cost, that will set up an automatic rewrite of the boot sector from a previously-made backup on every boot and that will run without user participation once it is set up?

A:Overwrite Boot Sector on Every Boot Automatically?

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I installed i-tunes yesterday and now today I have a non boot drive
(Maxtor 40 gig) which now is raw format. It apperars in windows but
cannot get into it in Windows. Tried some Hdd diags and most I can
figure out is bas secttor something.
I have amd 64 dual,abit an6-sli MB, and WD boot drive
Any ideas? Or more info I can provide

A:non boot drive went to raw: boot sector bogus


this is a test

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I have installed Windows 7 from my hard drive (E:\). Now I have a small problem, the boot sector (or something like that) is located in E:\, I want to move it to C:\. Moreover there is two options in the bootscreen: Windows 7 and install Windows 7 RC. How I will remove the secon option?

Thaks in advance.

A:Boot sector(?)

Please post a screenshot of Disk Management, like this:


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I've been trying to install First Defense-ISR Rescue on this computer and it won't install, it gets a -11 code and quits. The code means This means the boot sector is not a standard Windows boot sector. I have Windows Vista Home Premium 64 bit. My question is, if I remove the Recovery Partition D will this change the boot sector. I have factory backup DVD's and made my own DVD's, plus I have a TI image of the drive so I'm OK in that department.

A:HP Boot Sector

I'd see if First Defense has a forum of its own. You may be able to get advice from someone who has actually done it with that product.

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I have a major problem. I have a Dell Dimension 8300 and recently had a hard drive crash. I have also being shutting the computer off by cutting the power (Had major problems shutting off). Now I have many errors/bad sectors on the hard drive.

I'm thinking of using the hard drives company's software to low level format it.

From what I read it will erase my Master boot record. The question I have is -

Well my Recover CD that came with my computer install that (Boot sector) back on with everything else?

ANY help would be great. Thanks.

A:Boot Sector HELP!

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I have a Dell Inspiron that is running Win7 Home premium 64 bit and I am getting an error message while booting up it states
"No boot sector on internal hard drive"
"No bootable devices--strike F1 to retry boot"

When I strike F1 it boots just fine. I would like to fix this issue. Thanks in advance for helping

A:No Boot Sector

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my computer recently crashed on me , for no reason that i know off, so i ended up turning it off from the power switch and rebooting to find that when it started it it said that no boot sector could be found on the harddrive, cdrom and floppy

So after a bit i pulled out the harddrive and checked the leads etc all fine so i put back on and still got the same problem. so next i took out some other bits like unplugged cd rom, sound card ,tv card and tryed it and i manged to start safe mode abit but then it froze, so then i restarted and suddly it loaded normaly and now i have my computer booted back into windows.

But i dont want to turn it off incase it dont start back up again whilst its up does anyone know any programs or anything that i could run to check it??

Also do u think it had something to do with some of the hardware i taken out ??

Any help or ideas would be great ! ipatriot

A:Boot sector


It is quite possible that your master boot record is messed up. You did not say which operating system, so I am assuming XP. If you have XP and wish to take a chance of shutting down, here is how you can repair the MBR if that is what your problem is:

This is probably because your boot.ini file is messed up. Here is a possible remedy:

You can boot to the XP cd and when you see the "Welcome to setup" message, press the letter R.
You will then get a DOS prompt.
Then type: chkdsk /p [enter]
When that is done type: fixboot [enter]
Type: Y at the next prompt [enter]
Then type: exit [enter]
The system will now reboot into Windows.

If for some reason that didn't work, you can boot to the recovery console (example above).
Type: "chkdsk /r" [enter]
When done type: exit [enter].
This takes a bit longer, but the system should boot back into Windows.

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Hi there. I was running XP and windows 7 64bit on the same disk. I wanted to repair XP for a new motherboard. Well it won't start, because of a driver problem so I get a blue screen. At this point I no longer care, I want to boot into my Windows 7 installation. However, the boot sector is messed up and boot process goes straight into XP. When I use the windows 7 64 bit install disk, it offers no repair options. What now? How can I fix the boot sector for windows 7? I already used fixmbr with the XP disk. HELP! Thanks in advance for your tip.

A:Bad boot sector


Have a look at this tutorial at the link below, you may need the outlines in Option Two so scroll down and be sure to post back with any further questions you may have and to keep us informed.

Startup Repair - Run 3 Separate Times

DISKPART : At PC Startup

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Hi,i was hoping someone can tell me what i should do next.i had Empire monkey
virus and cleaned it from my computer ,you were recommended by the people over
at McAfee,they said someone can explain what to do next.


A:After the surgery!

From what you say I think you need to post a HijackThis log and then wait for someone qualified (gold shield next to their name) to take you through what needs to be done. Please go no further than the steps below and posting your results for now.You may want to print off this guide just in case.

Using Hijackthis with the self-installer that puts it into Program Files for you:

go to Click here to download HJTsetup.exe

Save HJTsetup.exe to your desktop.
Double click on the HJTsetup.exe icon on your desktop.
By default it will install to C:\Program Files\Hijack This.
Continue to click Next in the setup dialogue boxes until you get to the Select Additional Tasks dialogue.

Put a check by Create a desktop icon then click Next again.

Continue to follow the rest of the prompts from there.
At the final dialogue box click Finish and it will launch Hijack This.

Click on the Do a system scan and save a log file button. It will scan and then save the log and then the log will open in Notepad.

Click on "Edit > Select All" then click on "Edit > Copy" to copy the entire contents of the log.
Paste the log in your next reply.
DO NOT have Hijack This fix anything yet. Most of what it finds will be harmless or even required.

Once you've done this, hang on for further guidance.


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Im trying to fix a problem on one of my office's computer. We have determined that the problem is that the boot sector is corrupted.

Each time I try and boot into windows (whether in last known good config or normally), it will say it cannot go further because it is missing the following file


The CD I am using for repair is Windows XP service pack 2 (which does have a full install of Win XP on it)

I have tried the following to copy hal.dll into the hard drive

1. Using repair install

Everything was as normal, until after I agreeed on the user licence. The screen after the user licence didn't give me the option to repair the existing installation

This is weird considering SP2 is meant to be an upgrade/add on of WinXP, or maybe is there something I don't know

2. Using recovery console

According to microsoft, there is a command called expand which enables me to extract a file to a location (see http://pcsupport.about.com/od/termse/p/expand.htm)

In recovery console, I tried the following first

expand d:\i386\hal.dl_ c:\

Windows says it's unable to create file hal.dll

The second thing I tried in recovery console was

expand d:\i386\hal.dl_ c:\windows\system32\

but it said access denied. Even when I tried the latter with copy instead of expand I still get the same message

The computer only has 1 user (the administrator) so I find it is very strange that I cannot do this. A simple type of logon into the recovery console d... Read more

A:boot sector issues

The boot sector problem and the hal.dll problem are two completely separate issues. Try fixmbr and/or fixboot for the boot sector problem.

expand the hal.dll on another machine and hand-carry it to the broken system on a disk or thumbdrive.

The option to Repair depends on the disk you are using. I'm not certain, but I think I remember reading that the Retail disks will do a Repair Install, but the Upgrade & OEMs will not.

Just found this:


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My husband bought a computer recently, it was a used Dell. It has ME originally installed, and it had been upgraded to XP pro, but he didn't receive any software with it. It also has AutoCad 2005 installed, but again, no software. SInce he is currently in school for AutoCad, he was very happy to purchase this. He hadn't gotten to make back up disks for any of the software on it, or make a boot disk. So, it had Norton installed, but he was not the authorized user, and but he couldn't uninstall it, bc he didn't have the software. We have Qwest DSL, and he got online, but couldn't open certain pages, such as gmail. SO, he called Qwest, and a rep suggested he turn down his security settings. In the 30 seconds that took, his computer caught a boot sector error, and now his computer says "Sorry for the inconvenience, Windows cannot start" and it gives him options to start in safe mode or less good config, but they don't work either. So, what can he do?? Anything? He is not really wanting to install all fresh system because he will lose the XP Pro and the AutoCad, but what else can he do?

A:Boot Sector virus

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using testdisk and after a few scans it says "write fat boot sector" do i push yes or no? i have tons of pics on this hd that i dont want to be deleted forever. by writing a new boot sector will this erase my hd?

A:Writing fat boot sector

boot sector controls the ability to BOOT

the partition table controls the content in the partition.

In Windows, we normally use CHKDSK; testdisk is a linux tool

WHY are you using testdisk?

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I am helping a friend that has a E Machine Computer with Windows XP Home on it. I'm afraid he has run the computer without virus protection for so long that he has some major problems to resolve.

He had Panda virus protection but I'm not sure how long but probably several months since there has been any virus updates. I deleted the Panda virus and put AVG Free on the computer. After updating AVG definitions I ran a scan and it found 186 virus problems. Many were trojans. After the initial scan, AVG deleted 70 and sent sent 104 to the virus vault. A notification came up that said something about a system 32 file should not be placed in the virus vault or the system might not work properly. So I didn't.

After that much work on viruses I downloaded and installed Spy Bot Search and Destroy. After updating it, I ran it and it found over 600 various malware and spyware. I cleaned all of it.

Ran AVG again and it found an additional 12 viruses. One was deleted and the others were sent to the virus vault.

A problem that showed up when I first put the computer on was really different. When you first start it up it just sits at the monitor screen with the big E for about 15 to 18 minutes with nothing appearing to work. After that the mouse and keyboard come alive and it goes into the desktop. For the most part the computer works comparatively well after that. My guess is that it has a boot sector virus.

What steps should I take to see if I can correct this f... Read more

A:Think I have a Boot Sector Virus.Please Help!

Good to know that many viruses, malware, and spyware stuff have been removed. Since the computer is having this issue, I recommend performing a windows repair on the computer and see if that helps at all.

Boot the computer to a windows XP CD, not a restore CD, and then on the main menu choose "enter" like you are going to install windows for the first time. Then press "F8" to agree to the license agreement. Once the windows xp CD finds the previous operating system, choose "R" for repair and the computer will go to a repair installation which is windows repair.

See if this helps solve the problem out.

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Can anyone point me to good descriptions of the WinME MBR and boot sector contents? Including info on how to find the boot sectors on multiply partitioned disks.


A:MBR/Boot Sector Info


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I came home from lunch to find a message popped up on my computer. It was obviously some sort of malware (fake antispyware to be exact) trying to get me to install it. The only box to check was "ok" so I tried to alt+F4 out of the program, and then I tried to ctrl+alt+dlt. Neither worked. So, I then tried to just force shut off my computer, and it was booting down, but then the program was on my screen even as the computer was shutting down, and it wasn't letting it turn off. So I hit the off switch on the back of my case.Tried to reboot it, and it got to the "windows wasn't properly shut down" screen, and my keyboard did not work for me to select "boot windows normally" so it counted down and automatically started booting up, however, once it got past the XP loading/splash screen, the computer just restarted. Great! I got another hard drive I have lying around, plugged it in, and windows started booting up but my mouse/keyboard don't work. so I couldn't log on.So several hours later I tried my computer with the non-original HD in it, and the USB ports did work at least, and I could get to the desktop.I took my original HD to my computer at work and plugged it in an ran it as a secondary HD. I got all my most important files off, thankfully. I then tried scanning it with malware bytes and avast antivirus, but neither found anything really.I then ran the HD as the main HD, and it continued to chain reboot after the XP screen, b... Read more

A:Boot Sector Virus?

Hello and welcome to Bleeping ComputerWe apologize for the delay in responding to your request for help. Here at Bleeping Computer we get overwhelmed at times, and we are trying our best to keep up. Please note that your topic was not intentionally overlooked. Our mission is to help everyone in need, but sometimes it takes just a little longer to get to every request for help. No one is ignored here.If you have since resolved the original problem you were having, we would appreciate you letting us know. If not please perform the following steps below so we can have a look at the current condition of your machine. Please include a clear description of the problems you're having, along with any steps you may have performed so far.Please refrain from running tools or applying updates other than those we suggest while we are cleaning up your computer. The reason for this is so we know what is going on with the machine at any time. Some programs can interfere with others and hamper the recovery process.Even if you have already provided information about your PC, we need a new log to see what has changed since you originally posted your problem.Please download OTL from following mirror:This is THE MirrorSave it to your desktop.Double click on the icon on your desktop.Click the "Scan All Users" checkbox.Push the button.Two reports will open, copy and paste them in a reply here:OTL.txt <-- Will be openedExtra.txt <-- Will be minimizedIn the upper right hand cor... Read more

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Is it possible to get a boot sector virus on windows 7?

Are there any other ways that a virus can remain on my computer even after a reformat of windows 7?

A:Boot Sector Virus?

Its is very possible to get a boot sector virus on any operating system. Windows 7 is not immune to be infected.

It is rare but not impossible to remain infected after doing a reformat if you failed to format the whole disk and all its partitions.

Or if you saved anything to a disk and then returned it to the previously formatted hard drive.

You should try scanning the drive with a good anti-virus program to be sure.

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Somehow, I have managed to damage the boot sector on my Windows 7 PC. It wasn't going past the login screen and must have clicked on an option that started formatting the C: drive. Stopped it right there but now nothing works. Need to recover the personal files from the drive before formatting. Any solutions?! Am told taking the drive out and putting it as secondary drive in another computer may work.

Error message: Boot sector for system partition is corrupted.

A:Boot sector problem

Is this an oem pc like a dell or gateway? It should have a recovery partition if it is and if so check the manuel or the start up screen for the revovery option and press the appropriat key to start it

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I have a slave FAT32 drive in my XP machine. Problem is, XP is reporting it as RAW formatting and it can no longer be read in windows. When I run the command prompt and run a chkdsk on it, it comes up and says that it can't read the boot sector, but it does state that the drive is FAT32. What can I use to repair the boot sector? The backup boot sector is also corrupted, so a simple overwrite isn't the solution.

A:Boot Sector Problems

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I have been dual booting win98 and win2k pro for the past two months without problems. Yesterday and rebooted the system and it comes up with the message "Boot Sector not found. Please insert a Bootable Cartridge and press a key". I've tried the McAfee Boot Disk, which didn't find any virus. I've checked all connections to the HD. I can boot to DOS (using win98 boot disk) and see everything that is on my HD. Any ideas?

A:Boot sector problems...

What are you dual booting with? Some program, like Boot Magic?

You may want to run FDISK from that floppy and make sure the main partition is set to active.

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

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Hi there,
I have just formatted my 40Gb hard drive to reinstall with Windows ME. I did this just to clean off the hard drive so that it would be free of information that wasnt required. I now find that when I try to reinstall it tells me that there is a boot sector virus and it locks me out of the computer and I only have the option to restart and try again. I can boot up the computer to a c:\ prompt and have managed to format the drive as a single drive. How do I get rid of this virus? Please help as this is my childs computer and Im getting earache from them. Also that computer is not connected to the internet.

A:Boot Sector Virus

mitch0366 said:

Hi there,
I have just formatted my 40Gb hard drive to reinstall with Windows ME. I did this just to clean off the hard drive so that it would be free of information that wasnt required. I now find that when I try to reinstall it tells me that there is a boot sector virus and it locks me out of the computer and I only have the option to restart and try again. I can boot up the computer to a c:\ prompt and have managed to format the drive as a single drive. How do I get rid of this virus? Please help as this is my childs computer and Im getting earache from them. Also that computer is not connected to the internet.Click to expand...

At what point is it telling you about the virus?

If it is when Windows ME is installing then it is just the boot sector protection preventing Windows ME from modifying the Boot Sector, but the bios cannot distinguish between a virus and the Windows installation, it only detects an attempt at writing to the Boot Sector.

When the computer boots, press the del key or F2 depending on the bios make, find the option for boot sector protection and disable it, if you do not find that option, it may be under virus protection. If both options are there, disable both of them as sometimes the Virus protection oftion can cause problems too.
DO NOT change anything else, then save and exit. Once the installation is complete, you can turn it back on.

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windows vista 64 bit
toshiba satellite A505
my windows won't boot

using recovery disk for vista i went to startup repair which couldn't fix issue
gave the boot sector corrupted error
cmd-bootrec.exe did the boot fixmbr and fixboot- both said successful
rebuildbcd and scanOS both said that they could not detect windows installations

in recovery mode does not detect ANY operating system. Please Help! tried everything.

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I came home the other night to find that my computer will not boot. There had been storms that day, and power had gone out in the house at least once. The computer was plugged in through a power strip, and it was probably off. No indications of physical damage.

This is a self-built WinXP box, P4, with a SATA HD, and DVD, CD, and floppy drives.

It goes through the usual BIOS startup screen, stumbles through a slow version of the RAID-related screen that usually comes next, then tells me that an IDE scan finds nothing at Drives 0-3. Then a RAID configuration screen that I don't think usually appears, and then I get the screen that says there's been an error and asks if I want to load Windows in Safe Mode, Safe Mode with Networking, Safe Mode with Whipped Cream, Last Known Good Configuration, or Start Windows Normally. Starting Windows normally or last-known-good gets me as far as the WinXP logo for a moment, but then it restarts. The safe mode options churn out a screen or two of text but then restart. No error message.

HD light on the front comes for a moment at the beginning, blinks again at the Safe Mode screen, then flashes as the computer tries to load Windows.

Based on the above, am I right to think that it doesn't sound like the HD has failed physically? Should I try to boot from CD and see what can be read? But what does it mean that an IDE scan did not find any drives -- will it even see my CD drive?

Should I just reinstall Windows? That ca... Read more

A:Is my boot sector corrupted?

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I have accedently deleted my boot sector today, i am currently using an old ide drive that i installed to help fix the problem.

There are a ton of programs that help you restore boots sectors, but they all cost money, and i need to make sure i am using the right one.

Is there any way to restore my boot sector, and use my hard drive as it was. I didn't partition over the drive yet. And i have used a few programs to restore the files, and i see that they are all there, but I can't restore the boot sector for sure, unless i buy them and try too.


A:HELP!!! I deleted my boot sector

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My daughters laptop is not booting up.
I can access the boot menu, but on turning it on I get the following message:-
'a disk read error occured'.
I loaded the recovery disc and ran a repair.
The laptop advised me that the 'boot sector for system disk partition is corrupt'
The repair action is boot sector repair.
The operating system is VISTA
Any ideas how I go about fixing this please?

A:Boot sector corrupt

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Hello everyone I am using XP x64, somehow by bootsector got corrupted. When I try to boot with windows CD it says ntkrnlpa.exe is missing/corrupt. I also used wondershare Live boot CD which also doesnt boot. Virtually nothing boots in my computer all has same error ntkrnlpa.exe is corrupt /missing.

Is there any way to repair this? It looks like it may be corrupted MBR. As I m not able to boot from any device (tried USB/CD) how can i correct the corrupted boot sector.

Please help ...

A:Help with repair of boot sector

Interesting problem.

First thing I'd do is to remove and shuffle the memory sticks. Maybe clean off their edge connectors with an eraser.

Is this a laptop or desktop computer? If it's a laptop. Unplug, remove battery, press and hold the On button a few seconds. Then remove and reinstall the memory sticks & the HDD.

If a desktop, I'd open the case and shuffle the memory, & remove and replace the connectors to the HDD.

Why were you booting with a Windows CD? Were you getting a BSOD when you tried to boot to the HDD? If so, any messages?

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Friends, thanks for your help. The last time you or someone  tried to help, we were stopped by our Hijack This' inability to open or view my host file.   I am dealing with a long standing infection that has removed my control from my registry where I have found many suspicious files...too numerous to mention.  And when I try to delete these files [like IE5]  I get a message saying 'certain values cannot be deleted'.     
 And I ran Kaspersky's rescue disc which found at least eight instances of 'Trojan Arc BZ'
And claimed to remove it.   But it also showed a yellow caution sign that read 'DIsABLED' on the KRD report.
I have reformatted this Windows 7 Home Premium, HP Pavilion desktop [wired through a Linksys e2500 router with wireless disabled ] over twenty times trying to change things...delete suspicious things to no avail.   Windows Update recently downloaded something called Windows Wireless Router Module which I immediately disabled.      Some of my passwords have been changed without my knowledge.
I have a Windows workstation listed on my computer properties sheet.   I have used every popular antivirus program but based on my observation they are all rendered useless in the registry.  I am desperate to resolve this problem which has been going on for years.   It almost seems as if my some unknown person knows... Read more

A:Boot Sector Virus?

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This is a reply to advice by Boopme on my original posting: http://www.bleepingcomputer.com/forums/topic342713.htmlHopefully someone can help me find out if I have a problem and how to resolve it.Many thanks in anticipation. DDS Log:DDS (Ver_10-03-17.01) - NTFSx86 Run by RichH at 21:23:22.85 on 25/08/2010Internet Explorer: 8.0.6001.18702Microsoft Windows XP Professional 5.1.2600.3.1252.1.1033.18.3001.2009 [GMT 1:00]AV: AVG Internet Security *On-access scanning enabled* (Updated) {17DDD097-36FF-435F-9E1B-52D74245D6BF}FW: AVG Firewall *disabled* {8decf618-9569-4340-b34a-d78d28969b66}============== Running Processes ===============C:\WINDOWS\system32\svchost -k DcomLaunchsvchost.exeC:\Program Files\Trusteer\Rapport\bin\RapportMgmtService.exeC:\WINDOWS\System32\svchost.exe -k netsvcsc:\Program Files\WIDCOMM\Bluetooth Software\bin\btwdins.exeC:\WINDOWS\system32\svchost.exe -k WudfServiceGroupsvchost.exesvchost.exeC:\WINDOWS\system32\spoolsv.exeC:\Program Files\AVG\AVG8\IdentityProtection\agent\Bin\AVGIDSAgent.exesvchost.exeC:\Program Files\Adobe\Adobe Version Cue CS2\bin\VersionCueCS2.exeC:\Program Files\Common Files\Apple\Mobile Device Support\AppleMobileDeviceService.exeC:\PROGRA~1\AVG\AVG8\avgwdsvc.exeC:\PROGRA~1\AVG\AVG8\avgfws8.exeC:\... Read more

A:Boot Sector Virus

Hello and Welcome to the forums! My name is Gringo and I'll be glad to help you with your computer problems. Somethings to remember while we are working together.Do not run any other tool untill instructed to do so!Please Do not Attach logs or put in code boxes.Tell me about any problems that have occurred during the fix.Tell me of any other symptoms you may be having as these can help also.Do not run anything while running a fix.In the upper right hand corner of the topic you will see a button called Options. If you click on this in the drop-down menu you can choose Track this topic. By doing this and then choosing Immediate E-Mail notification and then clicking on Proceed you will be advised when we respond to your topic and facilitate the cleaning of your machine.We apologize for the delay in responding to your request for help. Here at Bleeping Computer we get overwhelmed at times, and we are trying our best to keep up. Please note that your topic was not intentionally overlooked. Our mission is to help everyone in need, but sometimes it takes just a little longer to get to every request for help. No one is ignored here.In order for me to see the status of the infection I will need a new set of logs to start with.Please print out or make a copy in notpad of any instructions given, as sometimes it is necessary to go offline and you will lose access to them.DeFogger: Please download DeFogger to your desktop.Double click DeFogger to run the tool. The ap... Read more

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I have a slave FAT32 drive in my XP machine. Problem is, XP is reporting it as RAW formatting and it can no longer be read in windows. When I run the command prompt and run a chkdsk on it, it comes up and says that it can't read the boot sector, but it does state that the drive is FAT32. What can I use to repair the boot sector? The backup boot sector is also corrupted, so a simple overwrite isn't the solution.

Now we have another problem. Windows XP isn't reading the disc at all, unformatted or not. Testdisk recognizes the drive but doesn't find a partition table. However, If I load up my Windows 98 Start up disk, I can use the dir command and see all the files. I'd be fine with doing a full copy of the files over to my drive. Is there a tool that can do this or a command in dos. The tool would need to be dos and recognize FAT32 and NTFS.

A:Boot Sector Problems

Hi stevetheman

I believe that either the Linux-based "Ultimate Boot CD" or the Bart's PE WindowsXP-based "Ultimate Boot CD for Windows" have tools that might be able to effect the copy of the data to the NTFS partitition.


Alternatively, a quick-fix try would be to power-off, unplug, take static precautions, open the case, disconnect your main XP drive, put in your Windows 98 disk (whether CD or diskette), boot from that, and from the command prompt, try the command


That should write a new FAT32 compatible boot sector without damaging your current partitions. But if you can copy your data first, that would be safest.

If all looks OK, go back (power off, unplug, etc.) and re-connect your XP drive & see if all can be seen Ok now.

Best of luck
. . . Gary

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I'll try to make this as brief as possible. About 6 months ago I got nailed by the infamous Y&#8734;Y&#8734; virus. It pretty much cleaned out the mbr and there was no chance of getting it back. So luckily the data was still safe on the hdd. So I scanned all the files and moved them over to my new seagate hdd and installed windows on it. Everything was fine for 2 weeks and then I got the same virus AGAIN. I had actually found this forum in February when that happened and learned how impossible it was to fix the boot sector after this virus ruins it. So I formatted again and unfortunately Im getting something similar again today. Im posting from my laptop since I cant boot my pc. For the record its XP Pro and is a valid copy and all that good stuff. So today I turned off the machine around lunch time and this evening when I boot up it stopped here:

Verifying DMI Pool Data .........
Boot from CD :
Boot from CD :
*flashing cursor*

First thing I figured was its another virus but Ive been using AVG to scan every single day when the machine boots so its hard to believe its a virus because it didnt see or catch anything. I tried changing cmos and making it boot only to the hdd but that did nothing. It shows the same error listed above no matter what the settings are in the BIOS. So Im totally lost. I hate formatting because I dont learn anything from it and its just as likely to happen again since I dont know how to prevent it. If anyone has some helpful suggestions o... Read more

A:Need some boot sector advice

Is your HD drive shown in BIOS?
What "repairs" did you try and what happened?

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Awhile ago I wanted to reformat so I started the process about two minutes into the reformat I got a blue screen with the error 0x0000007B. Ever since that my computer has been messing up cause it didn't finish the reformat process. If I try and start it again I get the error again.

Panda Log


Incident Status Location

Spyware:Cookie/Com.com Not disinfected C:\Documents and Settings\Miles Jacobsen\Application Data\Mozilla\Firefox\Profiles\w54n3wo4.default\cookies.txt[.com.com/]
Spyware:Cookie/Doubleclick Not disinfected C:\Documents and Settings\Miles Jacobsen\Application Data\Mozilla\Firefox\Profiles\w54n3wo4.default\cookies.txt[.doubleclick.net/]
Spyware:Cookie/2o7 ... Read more

A:Possible Boot Sector Virus

Please download Combofix from HERE

Save ComboFix to the desktop.

1. Double click on combo.exe & follow the prompts.
2. When finished, it will produce a logfile located at C:\ComboFix.txt.
3. Post the contents of that log in your next reply with a new hijackthis log.
Note: Do not mouseclick combofix's window while it is running. That may cause your system to stall/hang.

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Good day!

The computer was recently cleaned from spyware. During boot, the computer hanged when it was booting Windows XP. It stopped at the black screen with the logo and progress bar. The bar kept animating, but nothing happened after that.

I ran a system restore, which made the computer boot properly again, but when I ran a scan of AVG, a message appeared saying that the Boot Sector of Drive C: was changed. I decided to post a HiJackThis log since I'm not sure what caused this.

A Screencap of the AVG result is attached.

Thanks for reading.

Logfile of HijackThis v1.99.1
Scan saved at 1:45:00 PM, on 6/9/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

Running processes:
C:\PROGRA~1\Grisoft\AVG Free\avgamsvr.exe
C:\PROGRA~1\Grisoft\AVG Free\avgupsvc.exe
C:\PROGRA~1\Grisoft\AVG Free\avgemc.exe
c:\program files\mcafee.com\agent\mcdetect.exe
C:\Program Files\Java\jre1.6.0_01\bin\jusched.exe
C:\PROGRA~1\Grisoft\AVG Free\avgcc.exe
D:\Security Files\Zamaan's Software\Browser Hijack Retaliator 3\BHR3.exe
D:\Utility Files\Raxco\PerfectDisk\PDAg... Read more

A:Boot sector changed

Bump pls.

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don't know what the problem is but everything I download is corrupted. I don't know if it's a virus or my software but I already formated my HD several times now and the same problem occurs. the first time I reformated because of some program that deleted every .exe in my programs, but the problem still exist after reformating again and again for several times now, now I cant even install anything Please help me

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Hey there,
I?ve got a severe problem with my laptop (Windows 7 Home Premium 32bit). Some days ago I got a virus, which Avira knows as "BOO/Alureon.A". It caused some bad things in my boot sector, and after reboot and logging me in, it took approx. 5 minutes until I got to the desktop. The last two minutes I got stuck in blackscreen with my mouse, until the Explorer started. There was also a message that many Windows Services are deactivated. Other softwares, games etc. on my PC were still working. Me and my dad (he?s a real genius in such things) tried some Boot Scan programs, none could fix it.
A bit later we found out, that I have to write my MBR anew, and that I`ve got the necessary installation files from Win7 already on a hidden partition on my Laptop (it?s from Lenovo, by the way). With the Commands "bootrec /fixmbr" and "bootrec /fixboot" I reset my boot sector, now with every start up a short Bluescreen appears:
A problem has been detected and Windows has been shut down to prevent damage to your computer.

If this is the first time you've seen this Stop error screen,
restart your computer. If this screen appears again, follow
these steps:

Check for viruses on your computer. Remove any newly installed
hard drives or hard drive controllers. Check your hard drive to make
sure it is properly configured and terminated.

Run CHKDSK /F to check for hard drive corruption and then
restart your computer.

Technical Information:

*** STOP 0x0000007... Read more

A:Reparing my boot sector

I know your frustration and hope that this helps
MBR - Restore Windows 7 Master Boot Record

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I have an HP m8000n Media Center PC and I think there might be a boor sector virus or infection that does not show upusing normal av programs.I have been having random BSODs and with out rhyme or reason (to me) and usually after the auto restart it seems ok.It usually happens at start up or shortly after(5 min. to 1 hr.).Originally I took it to CompUSA (the only game in town) for a diagnostic and they told me that there was no OS on the hard drive and that my hard drive was bad, and so I bought a new one and they put it in.Shortly after (one week) it started the same BSODs, then finally a black screen "cannot boot insert disk", or something like that. I took it back and they told me that there was no OS on the drive , so they re installed the OS (Vista 32 Home Premium) .Again it worked fine for a while but now it's up to it's same tricks. I don't want to take it back to them again because obviously they don't knowwhat they are doing but to sell products that are not needed.So.....I need your help with this , please.I heard about ancient viruses or malware like " Brain" that can infect the boot sector and cause random BSODs stops and the like.How do I know for sure and how do I remove or fix it?Or is that really my problem?Here are my systems information >>>>>>>>>>>>>>>>>>>>>>> Speccy system information .Thanks , Ron

A:MBR boot sector virus?

Hi Ron Run this first. I have a class to teach now and will look back in a couple hours.Download the FixTDSS.exeSave the file to your Windows desktop.Close all running programs.If you are running Windows XP, turn off System Restore. How to turn off or turn on Windows XP System RestoreDouble-click the FixTDSS.exe file to start the removal tool.Click Start to begin the process, and then allow the tool to run.Restart the computer when prompted by the tool.After the computer has started, the tool will inform you of the state of infection (make sure to let me know what it said)If you are running Windows XP, re-enable System Restore.OR run Avira AntiVir Rescue SystemPlease download the Avira AntiVir Rescue System .Place a blank CD in your burner and double-click on the rescue system package (rescuecd.exe) to burn it to a CD/DVD which you can then use to boot your computer and run a scan. For detailed instructions, refer to the Tutorial for Avira Rescue CD. If you encounter problems running Avira AntiVir Rescue System, you can get further assistance at the Avira Tools Support Forum.

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