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Error message when trying to update to Windows 10 or to reinstall operating system 8.1: We couldn't update the system reserved partition."

Q: Error message when trying to update to Windows 10 or to reinstall operating system 8.1: We couldn't update the system reserved partition."

I have had my Dell 8700 for little over a year and have had problems from the beginning. I am 72 years old, and I am at my wits end!!!

A hard drive was replaced in the summer of 2015, but I have still had problems with the computer shutting down and my having to refresh it to factory setting.

I thought updating to Windows 10 would solve some problems, and I did this in October, 2015. Everything was fine until a couple of months ago. The end result was when I tried to refresh the computer to factory defaults, it went back to 8.0 or 8.1, and I evidently lost something in the process.
Now, I cannot update to Windows 10 and when I tried to resinstall the Dell Operating System, I get for both: "WE COULDN'T UPDATE THE SYSTEM RESERVED PARTITION."
I DO HAVE A SYSTEM BACKUP ON 20 CDS (MADE WHEN I HAD WINDOWS 10). Could I reinstall the system with these backupdisks? How do I do that? I also have a Dell 2 Boot USP stick, I have a recovery stick, too, but it semed that when I used this, I received a message that not all files were recovered
What should I do at this point?

Preferred Solution: Error message when trying to update to Windows 10 or to reinstall operating system 8.1: We couldn't update the system reserved partition."

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: Error message when trying to update to Windows 10 or to reinstall operating system 8.1: We couldn't update the system reserved partition."

On MBR disk, Windows 10 requires a 500MB system reserved partition, while 100MB in Windows 7, so you can try to extend system reserved partition.
In disk management, you can only extend partition using the unallocated space next to its right side. so even if you shrink D: drive, the option to extend the efi partition is still grayed out. My suggestion is to use a third party software, AOMEI Partition Assistant, both the standard (free) or the Professional(paid) version can extend partition as long as there is unallocated space on that hard drive. to see more information read:
Fix "We Couldn?t Update the System Reserved Partition" Error

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To be very clear, I am currently running Windows 10. Windows is trying to run some updates on top of that and is failing. I have checked my computer and disk management and there is not actually a system reserved partition. Thoughts??

A:Windows update; "We couldn't update the system reserved partition."

virushaan said:

To be very clear, I am currently running Windows 10. Windows is trying to run some updates on top of that and is failing. I have checked my computer and disk management and there is not actually a system reserved partition. Thoughts??

Well, if there isn't a system reserved partition, that is probably why Windows update could not update it.

Would you mind posting a screenshot of disk management, with all the columns widened enough so we can see all the data in them:
Disk Management - How to Post a Screenshot of - Windows 10 Tutorials

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I use Win10 pro 64 bit, and my current status in the update is attached.     When I click "fix issues", "We couldn't update the system reserved partition"  error message pops up. I read a lot of thing regarding the update from earlier versions of Windows. However, I can not figure out the problem. I attached my partitioned drive view. If you look at the recovery drive, status for it is not active? Could anyone please suggest a solution for this?

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I have a new Dell Inspiron 3847 running Win 8.1 64 Bit. My upgrade to windows 10 was reserved an I receive the notification to install, but when I tried I receive this message "We couldn't update the system reserved partition" I'm running Win 8.1 in a new Dell computer; How can I upgrade?.... I burn already an ISO file of the OS but I'm affraid that after a clean install will not find licence for the free upgrade.
I don't have a sys Reserved Partition in my DM what I have is  this sequence;
500mb EFI Sys Partition
40mb OEM Partition
750mb Recovery Partition
OS (C) 919.61GB NTFS (Boot, Page file, etc)
10.52 GB Recovery Partition  
How to use MIni Tool to do these,

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Hi guys,
I am having trouble upgrading to windows 10.
I believe the source of my problems is the lack of a system reserved partition. I tried resetting the tablet using the 'reset' option in advanced recovery, though didn't seem to get another system reserved. How can I reinstall windows on this tablet, considering I have no product key though be sure windows creates a system reserved partition?

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My Win 7 installation is very unreliable with lots of problems concerning wake up from standby, ATI display driver crashing often and several other glitches. So I decided to do clean restart, wipe out my Win 7 installation and do a complete new install.When I choose my former Win 7 partition, I always get an error message (I hope my translation is correct):"Setup couldn't create a new system partition or couldn't find an existing." There's a hint to look for the installer log, but I couldn't find it.I tried the follwing:1) Deleting the partition2) Deleting the partition and reformating with NTFS3) Deleting the partition from PartedMagic, watching for a hidden partitionNothing helped. I'm always get stucked with the same error.So, what can I do? Any suggestions? Are there some files or partition informations left which I also have to delete? Windows 7 x64 - Gigabyte EP-45-DS3 (Intel P45 chip set), 4GB RAM, ATI 4670

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I googled the issue and found that this could mean my system reserved partition is full and indeed that is what I found. My C: drive is a 500 GB SSD but the system partition is only 100 MB of which only 3 MB is free.

MS web page has a long convoluted command line "fix" for this (https://support.microsoft.com/en-us/kb/3086249) but I was wondering why I couldn't just "shrink" the main C: drive partition and then "extend" the system partition using diskmgmt.msc.

Or is there a better way?

A:latest update failed - can't update system reserved partition

Hello Ray Lo,

Yes, potentially you can do this... But I would suggest backup of your SSD, before you try to do anything as such... WRT shrinking and moving partitions! Just in case!

One extra step enforcing security does no hurt, does it?


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Windows 10 feature update 1607 failed. The system reserved partition is 100 and cannot be updated. I've walked through Microsoft's recommended fix using administrator rights to extend the partition. It didn't work. I've used a Windows 10 uprgrade link recommended on one of these boards. It failed with the message that the system reserved partition could not be upgraded. I was told that the partition might be locked from the manufacturer. I have no idea if that is true or just a wild suggestion. Are there any suggestions? I even tried directions using a MiniTool Partition Wizard recommended by a friend, but that failed as well. I use three computers regularly. The other two updated without issue. This desktop will not update. Help would be appreciated.

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Originally I had Windows 8.1 ... last year I was finally able to upgrade to Windows 10 ... problem then was unable to update the System Reserved Partition. I downloaded one of the third-party tools and was able to resolve the problem. Unfortunately, I didn't keep notes for myself. I think I made some partitions I didn't need nor intend.
Now ... I have the same problem in getting the update to Version 1703. I have downloaded three of the third-party tools and each one gives me a slightly different view of my hard drive. I've read a lot of posts by different people and am afraid now to do anything. I've got great help from this site before and I'm back again with a slightly slower/older brain.
I know without doing anything ... my Windows 10 will not get the update to version 1703. That may not mean anything to the performance of my system. Also, not sure I will continue to get regular updates since I don't have 1703.
I've backed-up all my data ... I've also used the back-up within Windows 10 to back-up my system on a USB for recovery. If I mess up the partition I'm not sure I would know how to use this recovery tool ... so am really anxious.
The view in MiniTool Partition Wizard (Free) shows
1.23GB with all used and it's labeled as OTHER ... and GPT (Reserved Partition)

Directly beneath that is:
22.18 GB of unallocated space.

Directly ABOVE the GPT (Reserved Partition) is:
100MB (12.78MB unused) ...FAT32 ... GPT (EFI System... Read more

A:Update 1703 failed due to System Reserved Partition

You said all your personal data is backed up.
Why don't you do a clean install of Windows 10 Home "Fall Creators Update" Version 1709 Build 16299 64-bit and get a fresh start?

After you boot from the Windows 10 disc that you create, select the "custom" install option.
Delete all current partitions, then create a single partition(which will create a system reserved partition), then start the install process.


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Hi everyone,
I had windows 10 installed on my Dell Inspiron 7720 laptop for around a year. I wanted to roll back to windows 8.1, so i downloaded the usb media from microsoft website.I booted from the pen drive and formatted all the drives. After that I proceeded to install windows 8.1. When the setup had just started copying files, my laptop shut down due to low battery. Now when i am trying to boot from usb or dvd, i am getting an error saying "An operating system was not found. Try disconnecting any drives that don't contain an operating system. Press Ctrl+Alt+Del to resart".
Also, when I am trying to change the boot order or to load default settings in bios, I am getting an error - "FORMSET 98FBBCFB-1392-4FDE-ABB8-C41CC5AD7D6D
Failed to save storage: Boot_mem-Boot_ITEMS. Status Access Denied"
Someone suggested me to reset the bios by reseating the CMOS Battery. Did that but still getting same error. I have run out of idea now, and desperately need help. If someone has any suggestion, please help me out.
Ravi Kaurav

A:"An operating system was not found" error while trying to reinstall windows

Is your bootable USB FAT32 formatted and using the GPT partition scheme for UEFI BIOS.
Is Secure Boot Enabled in your systems UEFI setup?
Have you tried with Windows 10 Installation Media?

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I'm have a very big problem. And it is very annoying. Every time I restart my computer from an automatic update, I get an "Error loading operating system" on start up. The only way to fix it is to restart my computer with my system disc in and do a system restore. Is there anything I can do to fix this problem?

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My Win 10 install failed and corrupted my laptop.  After several days, I finally got the laptop restored to Windows 7.  Now, I can't get anything to install.
My System Reserved Partition has only 19 MB / 100 MB free.  But I can't see what files are there that are using the space.  What do I use to clean up that partition so that I can do the Win 10 install which says it wants 50 MB free on the partition.

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My windows 7 is suddenly applying a drive letter to the system partition, and removing the letter which causes the "new disk inserted" window to keep popping up every half second. In Disk Manager the drive letter appears and disappears every half second.
The only way I've stopped it is to permanently apply a drive letter, which means it is now visible in windows explorer.

A:System reserved partition becoming "visible" and intermittently assigned drive letter by Windows

I assume by 'system partition' you really mean the hidden system restore partition installed by your PC builder? If so, then after I just fired up Paragon Partition Manager to see what it makes of that partition on my Win 7 PC, I find the partition is Primary, NTFS, active, not hidden, volume name WinRe.

The main interesting thing is the volume letter seems to be set to '*'. It appears as (*) rather than (C: ) as the OS drive does. Furthermore, the main menu has a 'partition' tab, where one of the options is 'assign drive letter', and the next option below is 'remove drive letter' which is currently greyed out.

Looking at the standard Windows computer management, storage, disk management, I see a similar picture, except there is no volume letter at all (apparent in that window anyway).

Quite how the partition gets identified in that way is a puzzle, but you might try a free partition manager, such as gparted and see what that says, and possibly allows you to change. As I say above, Paragon Partition Manager might let you de-assign a drive letter but I dont dare try it myself

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I have this Error 0xc0000185 where I cant boot to windows 8........ I tried everything: restarting , going to the bios but it still didnt work. It tells me that I have to boot it with windows 8 usb tool.  I am currently on windows 8 PRO.... How do I get the activation code from lenovo  for windows 8 PRO... 

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I've tried many times to install the latest critical BIOS update, using Lenovo System Update, and every time it attempts to, it fails after telling me in a popup that I need to turn the system off and make sure I have a fully charged battery. I rarely rely on battery power and use AC primarily, and I used Power Manager twice to do a full reset, just in case. I can't believe I would need to buy a new battery in order to install it, because the battery works just fine. I'm running Windows 7 (64-bit), and exhausted every other update or option, unless there's something else I'm not aware of. Is it just the software toying with me?

A:[T530] Battery error message won't allow BIOS update in System Update

Hello and welcomeDo not perform the BIOS update from within the TVSU. It's much safer to use CD/DVD and ISO image from the T530 support page.

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i'm having quite an anioing issue with my computer. everytime i boot up chkdsk wants to run on the windows 7 system reserve patition for consistancy. Now what happens is it trys to and and it gives me this: Cannot open volume for direct Access. Autochk cannot run due to an error caused by a recently installed software package. Use system restor to bring it to a time before the software. An unspecified error occured (766f6c756d652e63 3f1). Well i've worked on computers for years and never seen this before. i've looked at other threads but nobody has had this problem on the system reserve partition. So I've also tried booting to the dvd and runing command promp and runing chkdsk from there and what happens is because the partition is write protected it won't run there either. also i've tried the memory diagnostic tool and nothing is found. I would also like to avoid a fresh install at all costs. So if there is any ideas on which setting(s) need to be changed to allow chkdsk to run on the system reserve patition that would be awsome.   

A: chkdsk error (766f6c756d652e63 3f1) on windows 7 system reserved partition

wow I somehow just fixed it. I assigned a letter to the system reserved and out of coriousity I went to tools under properties and tried to click on error checking link again(which by the way never worked the other million times i tried it) and the link worked it said i needed to dismount the drive to run and then it ran and it said fixed the problem and i rebooted and no error so i think it is fixed thanks for your help

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Hey there, not sure where to put this but here goes:

I had a friend bring me a laptop to fix, it had a nasty collection of viruses. So I took the hard drive out and plugged it in to anoter machine running XP to do a virus scan using Symantec Endpoint Protection. I didn't have a USB adapter handy so I just opened the case and installed it as a secondary drive. Scan was going well and finding plenty, but after 3 hours I needed to take the drive home to continue working on it, so I canceled the scan, shut down the PC, took the drive out, and went home.

At home where I did have a USB adapter I plugged it in and discovered that the system was now reading the drives inocorrectly. In My Womputer the main partition shows up as the 100mb System Reserved partition, while in Computer Management it shows up as a 280gb partition. In My Computer I see all the files one expects to see on the System Reserved partition and none of the operating system or user files.

So today I tried putting the drive back into the laptop and windows will not boot. Took it back out and tried it directly installed in a machine as a secondary drive, same as before, and get the same problem: can't access the main partition and can't see the little system reserved partition in the partition manager.

Does anyone have any suggestions? Thank you in advance and I apolopgise if this turns out to be a dumb question.

A:Main drive partition reading as "System Reserved" partition

The partition on that drive in which the boot manager files live must be set as "active", in order for the BIOS of your machine to go there to start the boot process. And it also must be of type "primary" in order for it to be set "active". If the partition in which the boot manager files you've mentioned live is currently not set as "active", then that would explain why you can't boot to that drive.

And of course, that hard drive must be listed as the first hard drive in the boot sequence of the BIOS setup, so that the "active" partition on that drive (which is supposed to contain the boot manager files) can be used to kick off the boot process.

This "active" partition is typically that 100MB "system reserved", with the real Win7 system partition itself being a second and much larger partition.

But there's nothing to prevent both (a) boot manager and (b) Win7 system from residing in the same physical partition, as long as (a) it's a "primary" partition and not "logical", and (b) is set as "active", and (c) the hard drive on which it lives is the 1st hard drive listed in the boot sequence for the BIOS.

Anyway, what is the nature of the two partitions you're looking at... i.e. the one with the boot manager files and the other with the Win7 system files?

Screenshot possible? You can also use Partition Wizard to examine the hard drive and modify the "active" vs. ... Read more

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Hey I have a machine that had a small system disk. The windows update component is seemingly broken but I have had a hard time getting anything out of the CBS logs. If someone could help me out that would be great.

I have run sfc /scannow but could not find the files to replace. When I run
findstr /c:"[SR]" %windir%\Logs\CBS\CBS.log >"%userprofile%\Desktop\sfcdetails.txt"The output is blank.

Dism doesn't seem to work and I am unfamiliar with it.

I tried upgrade in place but I think a BIOS setting or mbr issue may be stopping me from doing an in place upgrade.

Any help is welcome.

A:Windows 7 update error 800B0100 system partition was undersized (FULL)

CheckSUR shows the following problems...

Unavailable repair files:
SFC shows the following problems...

Line 70530: 2015-07-13 12:38:49, Info CSI 0000031b [SR] Repairing 16 (0x0000000000000010) components
Line 70531: 2015-07-13 12:38:49, Info CSI 0000031c [SR] Beginning Verify and Repair transaction
Line 70532: 2015-07-13 12:38:49, Info CSI 0000031d [SR] Cannot verify component files for Microsoft-Windows-WindowsUpdateClient-UI.Resources, Version = 7.6.7600.320, pA = PROCESSOR_ARCHITECTURE_AMD64 (9), Culture = [l:10{5}]"en-US", VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, Type neutral, TypeName neutral, PublicKey neutral, manifest is damaged (FALSE)
Line 70533: 2015-07-13 12:38:49, Info CSI 0000031e [SR] Cannot verify component files for Microsoft-Windows-WindowsUpdateClient-ActiveX.Deployment, Version = 7.6.7600.320, pA = PROCESSOR_ARCHITECTURE_AMD64 (9), Culture neutral, VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, Type neutral, TypeName neutral, PublicKey neutral, manifest is damaged (FALSE)
Line 70534: 2015-07-13 12:38:49, Info CSI 0000031f [SR] Cannot verify component files for Microsoft-Windows-Win... Read more

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Whenever my computer tries to boot, it takes a while to detect anything from the CD-ROM (my first boot priority), and then when it detects the IDE, it says "error loading operating system" and after that I can't do anything but restart or shut down. I am running Windows XP Professional and it will load with a boot disk, but if I take out the boot disk it won't load. I'm not sure what to do, so please help me!

A:Solved: "error loading operating system" message when I try to boot

hi there, im sorry this isnt a solution. but i am having the same problem.

my old hard drive kicked the bucket and i got a new one. i cloned the hard drive using TrueImage which went fine. but when i restart the comp i get that error. i have tried to change the bios access mode to Large LBA and the other one but to no avail. i have herd that running the command fdisk /mbr may help but it could also cause problems.

does anyone know how to get past this?

also reinstalling xp doesnt work. i have formated the hard drive and tried to set up windows but to no avail

Thanks Lee

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During a recent windows update my pc froze, (mid-update) and I restarted my machine. Now windows gets stuck at the black" Loading operating system..."screen. After a long wait it will eventually display .........boot from cd/. When I boot from my windows dvd my os is not shown in system recovery. I Have also tried running start up repair from recovery with no luck. ANY IDEAS?????

A:Windows not Loading after update, hangs on "Loading operating system."

Hello deralickt and welcome to Seven Forums.

Are you receiving any error codes? Are you able to boot your machine in Safe Mode? If yes, see if you can access System Restore and go back to a date/time prior to the update. If you don't have a restore point you could also see if that update is showing in Windows Update History. If it is, try uninstalling it.

Safe Mode

System Restore

Windows Update - Uninstall an Update

The failed update may have damaged or corrupted some system files. From Safe Mode you could try running a System File Checker scan from an elevated command prompt (option two.) If problems are noted run the scan 3 times rebooting in between each scan.

SFC /SCANNOW Command - System File Checker

Since you have an install DVD you could also try a Repair Install to fix your currently installed Windows 7 and preserve your user accounts, data, programs, system drivers, etc.

Repair Install

A repair install may require that you reinstall a bunch of Windows Updates. I found it's safer (but more time consuming) to install just a few at a time rather than all at once. If you install a few at a time you can reboot, see if there are any issues, and if there are, you'll know exactly which 3 or 5 or 10 updates you need to remove. Reinstall them one at a time. They'll either all install correctly or you'll know exactly which one(s) are problematic. (If you install all at once and later find out there's a problem it's almost impossible to know which update is inv... Read more

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last night windows automatically updated and today when i turn it on i get "error loading operating system". i've run all the memory checks and disk checks that i could frm the BIOS and everything checks out. I have a UEFI interface and hitting f11 is supposed to give me a recovery manager but instead it just brings me back to the black error screen. please help.

A:w7 update 4/26/11 error loading operating system

If you have your Windows 7 Installation Disc, boot from that and run through the Startup Repair. Give that go and report back.

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I have 2 drives. One for the OS (an SSD with 120 GB of space), another for storage purpose (2TB).

When I try to reinstall Windows 7, here's what it says:

Disk 0 Partition 1: 2TB
Disk 1 Partition 1: System Reserved
Disk 1 Partition 2: System

Should I delete System Reserved if I want to do a clean install? Will it be recreated on its own?

Thank you!

A:Clean Reinstall - Should I delete "System Reserved"?

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With EaseUS Backup Tool, I've cloned these two partitions ("System Reserved" and "C") to same-sized partitions on a external HDD ("X" and "Y"). Picture tells it concisely:
How to make drives "X" and "Y" boot-able?

In "Disk Management", I've noticed these partition labels missing:"X" (or "System Reserved") is missing System label,
"Y" (or "OS") is missing Boot, Page File and Crash Dump labels

Thank you!

A:Both "System reserved" and "C" partition cloned to external HDD: boot?

You cannot boot Win7 on external HD, unless it is connected via eSATA.

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I have a Windows 7 Professional system whose hard drive was upgraded from a regular 500Gb drive to a Solid State 1Tb drive and the manufacturer's cloning utility was used to move everything over to the new drive.  I was trying to update the system
to Windows 10 Professional but kept getting the error message that it couldn't update the System Reserved partition.  I know the installation process needs at least 350Mb for the process so I started doing research on the best way to extend it. 
Following instructions posted in the Community, I shrank the C: drive so I would have 370Mb unallocated space, but when I went into the Disk Management console to extend it, that option is greyed out.
It was after closer examination I noticed I do not have a partition that is labeled specifically as "System Reserved" and I do not have a stand alone "Boot" partition.  I have one partition labeled Data with no drive letter that
is 100Mb that says "Healthy (System, Active, Primary Partition)", one partition with the drive letter C: that is 931 Gb that says "Healthy (Boot, Page File, Crash Dump, Primary Partition)" and then 370 Mb of Unallocated space.
To get the reserved Windows 10 installed I was thinking of possibly taking that Unallocated space and following the instructions I've read elsewhere, create the System Reserved partition so it would then be 370Mb but I'm not sure just doing that would work
however... Read more

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Whenever I click "Check for Updates" in the Windows 7 update dialog, the scanning bar moves and moves, but it never passes this step. In eventvwr, there's an error with description:

"Insufficient system resources exist to complete the requested service."

Windows updates never install. This is my laptop in my signature, so system resources shouldn't be a problem, what with 3 GB ram available, core2duo, etc. Any ideas on what I can do to fix this?

Thank you!

A:windows 7 update hangs, "insufficient system resources" error

Hi -

How much HDD space is available?

Have you cleaned out temp file storage areas?
START | cleanmgr

Regards. . .



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I have an Inspiron 13 7000 series 2-in-1 and i frequently lose sound after system updates. Normally I just uninstalled the Conexant SmartAudio component and driver, reboot and the new driver magically appears. Not so this time. So I went to Dell to find the right driver. They require I install their System Detect software but I get an error message (see below). Any help is greatly appreciated.
PLATFORM VERSION INFO Windows : 10.0.15063.0 (Win32NT) Common Language Runtime : 4.0.30319.42000 System.Deployment.dll : 4.7.2046.0 built by: NET47REL1 clr.dll : 4.7.2046.0 built by: NET47REL1 dfdll.dll : 4.7.2046.0 built by: NET47REL1 dfshim.dll : 10.0.15063.0 (WinBuild.160101.0800)
SOURCES Deployment url : downloads.dell.com/.../DellSystemDetect.application Server : Microsoft-IIS/8.5 X-Powered-By : ASP.NET Deployment Provider url : downloads.dell.com/.../dellsystemdetect.application Server : Microsoft-IIS/8.5 X-Powered-By : ASP.NET Application url : downloads.dell.com/.../DellSystemDetect.exe.manifest Server : Microsoft-IIS/8.5 X-Powered-By : ASP.NET
IDENTITIES Deployment Identity : DellSystemDetect.application, Version=, Culture=neutral, PublicKeyToken=831211ca63b981c5, processorArchitecture=msil Application Identity : DellSystemDetect.exe, Version=, Culture=neutral, PublicKeyToken=831211ca63b981c5, processorArchitecture=msil, type=win32
APPLICATION SUMMARY * Installable application. * Trust url parameter is set.ERROR SUMMARY Below is a summary of the errors, de... Read more

A:No sound after Windows 10 update AND I get an error message when I try to install Dell System Detect

opal875Inspiron 13 7000 series
What is the model number please?

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Hello, I atached an printscreen to this thread with disk management.

Is there any advantages of this " hidden partition / system reserved " at all?

I will make a windows 7 reinstall and I am planning to install it in only one partition, without this 100 / 200 mb hidden partition, but I'm not entirely decided. What are the reasons should I left it there?

I currently dual boot windows xp / windows 7 from this hdd, and as for backup I use acronis to create system images so I do not intend or wish to use microsoft windows 7 backup, restore points, system restore etc.

Thank you in advance!

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A:Sugestion of Install with or whitout "system reserved partition" ?

Since there is no System Active flag on XP, if XP is booting then according to the screenshot SysReserved contains the boot files for XP as well.

In this case during reinstall of Win7 I would use Custom>Drive Options to delete SysReserved and Win7 partitions, create a partition in that space, then format and click Next to install.

Win7 should configure a Dual Boot menu during install. If not, afterwards install EasyBCD 2.02 to Win7 to Add XP, accept boot files, let it autocomplete, Save, Reboot to Dual Boot menu.

Is 30gb large enough for your Win7 install? I would want it larger myself. If you'd like to borrow some space from the data partition, use free Partition Wizard bootable CD to Resize E from the left by the amount you wish to increase C's size before the reinstall. Back up your data and be sure not to touch E during reinstall.

Tips for getting a perfect one: Reinstalling Windows 7

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When you install a new copy of W7, in my case Professional 32bit, 1TB disk, it
makes default a hidden "system reserved partition" with a size of 100Mb.
On this partition there are system files.

Why does W7 do this, what is the use of it, is it an advantage or more a disadvantage ?

I also discovered that you can install a copy of W7 without this "system reserved partition",
then everything is on the same partiton.

what is wisdom ?

please advice

A:When installing W7, it makes def. a "system reserved partition", why ?

It's hardly worth fretting about. I can take it or leave it.

If you use Bitlocker or plan to Dual Boot then it's best to have it.

If not and you want to avoid it, prepartition the HD with Partition Wizard boot CD and then choose the partition to install upon.

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Hi guys. First post here so take it easy on me, haha.

I installed Windows 7 Enterprise 64-bit edition on my new Lenovo laptop. I captured an image of my machine and deployed the image to several others. Now, we want to start using Bitlocker. However, there is no "system reserved" partition, you know, the 100MB one that Windows automatically creates during install. Turns out that Bitlocker NEEDS this partition.

I can manually create this partition, but I don't think it's useable by Bitlocker. Regardless, I tested this. I created the partition (200mb after shrinking primary partition), rebooted, and ran the manage-bde -status command. There is another drive listed but it's unusable.

Here is the output of that command:


Disk volumes that can be protected with
BitLocker Drive Encryption:
Volume D: [500GB]
[Data Volume]
Size: 465.76 GB
BitLocker Version: None
Conversion Status: Fully Decrypted
Percentage Encrypted: 0%
Encryption Method: None
Protection Status: Protection Off
Lock Status: Unlocked
Identification Field: None
Automatic Unlock: Disabled
Key Protectors: None Found
Volume . []
[Data Volume]
Size: Unknown GB
BitLocker Version: None
Conversion Status: Fully Decrypted
Percentage Encrypted: 0%
Encryption Method: None
Protection Status: Protection Off
Lock Status: Unlocked
Identification Fie... Read more

A:How do I create the "system reserved" partition for use by Bitlocker?

Hello Snake, and welcome to Seven Forums.

If you use the BitLocker wizard to encrypt the OS drive, then BitLocker will automatically create the System Reserved partition for you.

BitLocker Drive Encryption - Windows 7 Drive - Turn On or Off with no TPM

Hope this helps,

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I have multiple Win 10 Pro 64bit system/image backups of my C: drive...both Windows Images(s) and Acronis system tibs. Do I need any/all Reserve Partition(s) on the C: drive in addition to image/tib system backups ??


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Let me start off my saying I've installed this exact copy of windows 7 before on this computer with no problems and it worked for years. I'm trying to install Windows 7 ultimate 64 bit version when I run into this message "Setup was unable to create a new system partition or locate an existing partition." So I search and find a solution in these forums (Setup was unable to create a new system partition) I do that but I get stuck on "format fs=ntsf". I'm getting a message error saying "The arguments specified for this command are not valid." What do I do? I googled but found several different answers and didn't fully understand some if them. Any help would be appreciated.

A:Error message of "Setup was unable to create a new system partition"

Your syntax is off:

Commands are

SELECT DISK 0 (after confirming Windows 7 target HD #)

If this isn't enough start at the top of Overcoming Windows 7 Installation Failures - Windows 7 Help Forums

If those steps fail then test your hard drive with the maker's HD Diagnostic extended CD scan, followed by Disk Check done from the installer Command Line on a full disk partition your create.

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hello everyone. I have an HP zv6000 laptop that's probably 4-5 years old. I attempted to use it today and I got that message stating the OS cannot be found or is corrupt. I last used it the other day just to pay some bills and nothing else. I removed the HD and put it back in. I've tried to open safe mode with nothing more than just the HP screen coming up then that message. Anyone else have ideas? I've got a ridiculous amount of information on there and I'm pretty much fearing I've lost it all....

A:Message saying "windows operating system cannot be found or is corrupt."

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a friend of mine has a sony vaio laptop with windows 8 on it,but she wants windows 7(plus there is a problem with the laptop,the internet eplorer doesnt open,the window opens for half a second and then closes,and no internet-related application works).i first used a boot usb,configured the bios so that it boots from external devices first and then used the assist button on the laptop to make it manually boot from an external device.the message"operating system not found " came up.then i extracted the iso to an external hard drive to boot it form there and the same message came up.i even burned the image to a dvd and made it boot from the optical drive,but the same message came up.what can i do?or is there some hardware problem which also explains the internet applications not opening?thnx in advance

A:"operating system not found" message when trying to install windows 7

It requires disabling Secure Boot first to upgrade a Win8 PC to Win7: UpDowngrade Windows 8 to Windows 7.

Then follow these special steps to install to UEFI (Unified Extensible Firmware Interface) - Install Windows 7 with - Windows 7 Forums

or Bypass UEFI to Install WIn7.

To understand UEFI better so you can choose, watch this video: Technical Note: UEFI BIOS vs. Legacy BIOS - YouTube

You need a bootable DVD or flash stick installer which is provided in these same steps that will show you how to get and keep a perfect Clean Reinstall - Factory OEM Windows 7. To use flash stick installer there are also these special steps for UEFI Bootable USB Flash Drive - Create in Windows

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Hi all,

Installed a DVDRW drive but comp crashed when installing some software and it stopped detecting my Primary Master and Slave drives. I've fiddled about with the Master and Slave configs and have managed to get it to detect my HD and DVDROM.

I've unplugged my DVDRW and my small HDD and am trying to get windows to load up.

After using FDISK /MBR an rebooting, I get "Missing Operating System".

Tried installing Windows XP after formatting, it seems to have installed but it's not loading.

Current config:

Slave: Pioneer DVDROM (not the DVDRW)
Master: Seagate 80GB (C: = 15GB) & (D: = 61GB).

D: has files on there that I'd like to recover. Too big to put on floppy.

I've run a search for similar problems and tried some of the solutions but no good. Any ideas? Thanks

A:"Error Loading Operating System" to "Missing Operating System"

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Hi Peeps,

I have an SSD (OCZ 120gb vertex 3) which I installed windows 7 64bit on.
I also have a secondary WD 2TB HDD in the machine.

When I installed Windows, it automatically created the " System reserved partition" of (100mb) on the 2TB WD HDD.

Im not really sure why it did this, as 100mb is not a lot of space on a 120gb SSD.

Anyways, since installing, the 2 TB HDD has died. and I have lost the system reserved partition and now the SSD wont boot, which had windows on it and 2 days worth of programs installed along with customers data.

im not so worried about the 2TB, but I need to get the SSD going again.

Is there any way I can recreate this 100mb System Partition so my ssd will boot the windows?

Any suggestions would be awesome, as my deadline fast approaches :(

Thanks in advance,

A:[SOLVED] SSD "system reserved partition"

Hello gstratto,

The system reserved partition contains all the data needed to boot the drive, so in other words, it has no boot manager and nothing to tell the drive where to boot. Normally when this drive becomes corrupt, we can repair those files and get it up and running again. However when it has been deleted, I'm unsure if you can.

You could try to boot the installation DVD; and instead of choosing "Install now", choose "Automatically repair my computer" and see if it turns up any faults. If unsuccessful, you should make a backup of that HDD (Put it into another PC and extract the data) and reinstall the drive.

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Recently after flashing a new BIOS I had to do a StartUp Repair (got the "BOOTMGR is missing" message) which did its job and all is working fine, but now I have the "System Reserved" partition showing up when I open Windows Explorer. It's also taking up the F: drive letter, which used to belong to my external HDD. I don't really care about either of that, but for aesthetic purposes if anything, is there a way to make it go away?

A:Visible "System Reserved" partition

Hello mate.

So you can get the correct advice, please post a maximized snip / screen-shot of Windows 7 disk management, making sure the individual columns in the top section are clearly readable, have a look at this tutorial linked below.

How to Upload and Post a Screenshot

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Hey guys. I'm back with 7600 :P
But, I have come across some hardship but long story short; I saved all my files from my both OS. Tried shrinking my Vista partition, failed (resulting in loss of the OS) and re-installed both OS. But when I installed Win7 Home Premium x86, I've created a 40GB partition for Vista then took the rest for Win7. Then, tada, another partition called "System reserved", 100MB big, was created. I didn't care at first.

Then, I installed Vista on the 40GB partition again. Then, once it booted, the partition was in Computer. I was like o_O, I wanted to delete it. Installed the drivers, firefox, thunderbird and NOD32. I saw that it was flagged "Active". I decided to put the "Active" flag to Vista's partition because a prompt told me that a running OS was needed to put that flag. OK. Then, I rebooted to go to Win7 and start my looooooooooooooooooooooooooooooong install of stuff.

I was welcomed with a "Missing BOOTMGR". I sighted and put my Win7 HP x86 in the CD-Rom drive and repaired twice. On the 4th reboot, both OS was available at the dual-boot screen. Logged onto Win7. Installed the drivers then checked back the Computer Management to see that partition. It was now only labeled "Primary".

So, my question, after all that Wall-O-Text, is : can I safely delete that partition and extend it to one of the two partition? Thx!!

A:Unwanted partition : "System Reserved"

That partition is created when you install 7 to unallocated space. If you create a partition and format it, 7 shouldn't create that partition.

This partition contains boot files and memory test. It needs to be active. Don't know if it will work, but booting from the 7 dvd and doing a repair install might fix. Might have to do it 2 or 3 times to get it all straightened out.

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Hi all

I've two Windows 7 installations as a multi boot on two physical drives:

Disk 1 - 100 MB System reserved partition and a windows partition with my first (not genuine I later found) installation
Disk 2 - Second "genuine" installation

I'll eventually delete the first installation and would like also to shift the System reserved partition to the second disk so that it "stands alone" as a boot drive. I'm comfortable enough with creating/copying/moving partitions but guess that it won't be as simple as "inserting" a copy of the system reserved partition at the start of the second disk and switching the boot order of the drives.

I can't find any tutorials/posts on the topic, nearest hint suggested I might be looking at a repair install, but before I go down the trial and error route I thought I'd check to see if anyone knew.



A:Moving "System Reserved" partition

Welcome to SF!

I did all this using Partition Wizard and changing the Boot Sequence in BIOS.

I didn't have any problems- just make some backups first.

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First time posting, but found the Win 7 forums very helpful. I'm trying to upgrade from Windows 7 to Windows 8 (and then 8.1) on a laptop with a 240 GB SSD. When I run setup, it loads, but then says Windows can't be installed because there isn't enough free space on the system reserved partition. My reserved partition is only 32 MB (I believe it was shrunk from 100 MB when I swapped the SSD in).

Is there any way I can resize the reserved partition and install Windows 8, or will I need to totally reformat the drive and repartition? Don't want to reinstall all my software if I can help it....


A:Not enough space on system reserved partition error

Can you post a screen shot of Disk management?

Screenshots and Files - Upload and Post in Eight Forums

Disk Management - Post a Screen Capture Image - Windows 7 Help Forums

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Hi all it has been awhile. I have an HP Laptop windows 10 with 12 gigs memory. Well it updated on its own this morning and really messed up my operating system. It only goes to choose an option. First I chose to Continue Exit continue rollback but that just put me in choose a keyboard. So then I hit Troubleshoot but it wont trouble shoot. I tried even rolling back and that does not work. Not sure what to do here.

Anyone out there know how to fix this issue?

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Can you help me. I have a Inspiron M301Z laptop that originally had Windows 7, but I installed the free Windows 10 upgrade.
I needed to have a ?System Restore? after it finished and rebooted, I got the error message ?A operating system wasn?t found. Try disconnecting any drives that don?t contain an operating system.
A full diagnostic test found no problems.
I would prefer to reinstate the original Windows 7 and Dell drivers, but I assume installing Windows 10 removed the Windows 7 installed on my motherboard.
How can I reinstall an operating system?
Robert (kingsthorne50).

A:After system restore: error message ‘A operating system wasn’t found’

Did you run an extended (takes a couple of hours) diagnostic on the hard drive - or just the quick one?

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Hi all,
Windows 7 Pro 32bit
I have a captured image and I booted into PE on my target system. I used Diskpart:

select drive 1
create partition primary
format quick fs=ntfs label="Win7 32bit"
assign letter="C"

Then I applied the image with imagex:

imagex /apply e:\testimage.wim 1 c:\

The image applied, but now when I try to boot (After removing the PE boot disc), it tries to network boot and gives me the message "Operating System Not Found. I made sure to reset my boot order to HD>removable>CD>Network.
Do I need to manually create a small partition responsible for booting? What steps do I take from here? I was surprised that googling didn't lead me to my specific problem, but mostly problems involving SCCM and large scale deployments.

Thanks in advance,

A:I deployed an image and then tried to boot it, but the system tried to network boot instead and then gave me the message "Operating System Not Found"

In your diskpart,you need to add


To make partition active

After applying image, you need to create BCD environment with:

bcdboot C:\Windows


Drive letter C: is whatever you used in command:

Imagex /apply e:\testimage.wim 1 c:\

If you would use two partition setup as suggested by other posters, then the small 100 MB partition would be C: and the "Windows" partition would be "D:". Hence, you would use

bcdboot D:\Windows

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As you know in former times the MBR record was always put on the first Primary partition on a hard disc.

With Windows 7 a separate special "System Reserved" partition of 100MB was introduced for this purpose. The MBR is now put on this partition which directs the user finally to the actual target partition to boot.

A possible partitioning could look like this:

40GB partC Primary
100MB SystemReserved Primary, Active
40GB reserve Primary
700GB partD Extended Logical

So if I boot my computer then at first the MBR on the "SystemReserved" partition is started which shows the boot menu. When I select Win7 on partC then this system is booted.


1.) Is putting the MBR on the SystemReserved partition now (with Win7) a MUST or do I have the choice to put it on partC as well?

2.) If I put the MBR on the SystemReserved partition: Does this partition have to be visible or can it be hidden as well?

3.) Is a SystemReserved partition only then required if I have MORE than 1 bootable partition? Or can I use it with 1 partition as well?

4.) How can I find out (with a separate easy-to-use tool or cmd) where (on which partition) currently the MBR is saved?

Thank you

A:Where to put the MBR? On the "System Reserved" 100 MB partition?

The MBR is fixed - it's the System boot files represented by the System flag which can be moved if necessary.

Where is the System flag appearing now, SysReserved? I would leave it there and remove any drive letter in Disk Mgmt if one exists.

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ASUS Motherboard M4N82 Delux
ASUS Automatic Bios Update crashed system
It says there is no operating system on a clean system, so shoot, I will reload. Now on all hard drives it reads setup was unable to create a new system partition or locate an existing system parition. See setup log files for more information.

Not sure how you see logs if system can not operate. One of the drives was completely empty. Just had formated faster two drives in Raid before bios update a mistake I guess going to 5-2010 update sucks now. No computer any ideas and notice it use to ask to set up raid on startup by hitting F10 nothing similar now.

Am I screwed now, not sure if a start dvd would work or not as immediately after update it said I had no operating system which was just loaded. I did notice once I could get into DOS that instead of a C: Prompt there is a X: weired experience. Maybe figure out how to make a boot disc in win7 or maybe HP laptop not sure if that will help. Running repair from DOS but no luck

A:Windows 7 64 died after bios update no operating system?

Have you called ASUS Yet, and asked them?

PC Crashes while the BIOS is being updated can make a computer become a paperweight.

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First actual "system" update i seen on Windows update!

Update for Windows 7 for x64-based Systems (KB974332)
Download size: 1.7 MB
You may need to restart your computer for this update to take effect.
Update type: Recommended
Install this update to resolve issues with non-compatible applications for Windows 7. For complete details of this update, see Knowledge Base Article KB974332. After you install this item, you may have to restart your computer.
More information:
Windows 7 and Windows Server 2008 R2 Application Compatibility Update
Help and Support:
Microsoft Help and Support


Not that i see the need for updates, the OS runs fine for me

A:First actual "system" update i seen on Windows update

Quote: Originally Posted by ussj4brolli

First actual "system" update i seen on Windows update!

Update for Windows 7 for x64-based Systems (KB974332)
Download size: 1.7 MB
You may need to restart your computer for this update to take effect.
Update type: Recommended
Install this update to resolve issues with non-compatible applications for Windows 7. For complete details of this update, see Knowledge Base Article KB974332. After you install this item, you may have to restart your computer.
More information:
Windows 7 and Windows Server 2008 R2 Application Compatibility Update
Help and Support:
Microsoft Help and Support


Not that i see the need for updates, the OS runs fine for me

Thanks for the info, anyone notice any problems with this update before I install? Thanks
I have build 7600 Ultimate 64 bit installed.

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I've got a question for the Pro's ...

This is regarding my ASUS Tablet with Windows 8.1 Professional x86 installed (Windows is activated of course).

The Tablet currently has Windows 10 reserved and after looking at this post, i took a curious look at the KB used to reserve it and noticed that KB2952664 was applied .

Can anyone let me know as to why Windows Update applied KB2952664 to reserve Windows 10 when that is a Windows 10 Reservation for the Windows 7 x86 systems ???

I am pretty well versed in Computer Hardware and Software (though i am no Master in those fields) and this is kind of a confusing update applied.

I am all ears LOL !

Thanks a bunch!

A:Why WU Reserved Win10 in a Win8.1 System Using a Win7 KB Update??

I'm not sure why Windows applied that update but the update to reserve Windows 10 is KB3035583 for both Windows 7 and 8.1.


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