Win10 "We couldn't update the system reserved partition"

david houldershaw

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Jul 29, 2015
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I am currently running win8.1 and trying to update to win10, but when i start to update i get a message that says "We couldn't update the system reserved partition" .
Any help:??:
 

david houldershaw

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Jul 29, 2015
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i seemed have solved the problem!
What i had to do is get a program called min tool partition tool and right clicked on the system reserved then extended it by about 300mbs.
if you need any more information or a more detailed solution just ask me.
 

Beans_93

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Jan 1, 2013
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I found another solution. Restart your PC hit F2 or Del to enter BIOS and then reset to factory defaults. For me with an ASUS the key bindings are SHITF=F5. Worked for me
 

buddyfriendguy

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Jul 31, 2015
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This. I even had another partition tool that wouldnt let me extend the system reserve but your tool worked. Also had to force the download by using method 2 from here tenforums.com/general-discussion/9261
 

1LastNight

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Jul 29, 2015
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I found a solution that doesn't use third part tool's because i never trust them; still thanks to the dude who said it.

Here's how you can do it. PS: i got it from reddit.

Press win+r and type diskmgmt.msc
Click on your C: drive
Below the list of drives there will be a partition map, the first partition will be Data or some such, listed at 100MB, right click on it and go to change drive letters and paths -> add -> now choose Y: for the drive letter
Right click the CMD.EXE start menu icon and choose 'Run as Administrator'. Or, to open an admin cmd prompt, in win8 you can press win+x and choose command prompt (admin), in win7 you have to create a shortcut for cmd.exe, then go to compatibility in the shortcut properties, and choose run as admin.
Type: Y: <enter> in the cmd window
Run these commands:
takeown<space>/f<space>.<space>/r<space>/d<space>y
icacls<space>.<space>/grant<space>administrators:F<space>/t
attrib<space>-h<space>-s<space>-r<space>bootmgr
NOTE: for the icacls command you can use your username instead of administrators, to find out your username type 'whoami'
Now open explorer (win+e) go to the Y: drive under computer, Make sure hidden files and system files are visible through folder options. Then go into the Boot folder, and delete all languages other than en-US. Languages are in the form xx-XX. Make sure to shift+delete and not just delete so they don't go to the recycle bin. Empty the recycle bin afterwards just in case.
now go back to the admin command prompt, and type this command:
"for win 8 i think"chkdsk<space>Y:<space>/F<space>/X /sdcleanup /L:5000
"for win 7"chkdsk<space>Y:<space>/F<space>/X<space>/L:5000
this truncates the NTFS log to 5MB, it can be very very big, not leaving enough space for the install. At the end of the output it should tell you that you have at least 50MB of free space on the partition
proceed with the windows 8.1 installation
once booted into 10 and set up, you can go back into diskmgmt.msc and remove the drive letter for the boot partition

hope this helps :) PS: win10 looks great!
 

mbillqui

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Aug 2, 2015
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THIS WORKED GREAT FOR ME TODAY. THANKS! MiniTool would not expand the partition.
 

Brett Caton

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Aug 4, 2015
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Using Firefox, right click/view image to see it properly.. I assume there's an equivalent in most browsers.


This is my system. It's confusing as it has multiple 'system partitions' but the windows 10 error refers to them as singular.

This is causing me havoc - it's stopped me from being able to backup my system, because the system partitions have no free space, which is a requirement.

It's a catch-22 that before you change any of this, you need to back up first!

I didn't find out until the warranty for the OS has expired either, and i haven't really wanted to try and reinstall every goddamn thing, which is a horrible job.

I'm not sure how to translate the instructions above to make it applicable - I don't have a 'data' partition in any case? It seems like the commands are almost but not quite right, and I really really don't want to have to wipe everything and reinstall from scratch - that's a week's work easy.
 

JaguarJoey

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Aug 4, 2015
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This worked like a charm! Thank you...

 

Grunnfuttok

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Aug 5, 2015
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This (for some unknown reason) didn't work for me. Could someone help me please?
 

Emkot

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Jan 10, 2015
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gj i've been searching 2 days now
 

mpkonig

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Jan 2, 2007
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I went into disk manager and right clicked my C: drive and clicked "Marked Partition as active" or something of the sort and it worked.

1. press win+r and type diskmgmt.msc

2. Right click on your C: drive and click on "Mark partition as Active".

Hit the windows 10 button and try to install again....instead of giving me the error again, it started downloading the files

Worked for me so for
 

fforcey

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Aug 13, 2015
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This worked perfectly for me. Such a simple solution compared to the complex one above or having to download and install a third party tool. Thanks!

 

Roman Tanvir

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Jan 22, 2015
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Strange thing. I installed the fresh version of windows 10 and on selecting partition, I deleted both the system drive and reserved drive. Then I format it. As in windows 7 and 8, system reversed is created automatically but in windows 10 NO SYSTEM RESERVED DRIVE was created and windows installed taking just 9 gb without the system reserved drive. MAYBE IT WAS ACTIVE DRIVE.
 

Benedict_1

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Aug 19, 2015
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after trying mpkonigs solution I am stuck with a unusable PC... :(

When the computer restarted I was greeted with the following screen:
Recovery:
Your PC/Device needs to be repaired
The Boot Configuration Data for your PC is missing or contains errors:
File: \Boot\BCD
Error code: 0xc000000f
You'll need to use recovery tools. If you don't have any installation media (like a disc or USB device), contact your PC administrator or PC/Device manufacturer...




I have no idea how to fix this... I've tried Alt-F10 but it can't find the acer erecovery tools...
Help? :(

Edit: Solved my issue,

Had to install Linux (Ubuntu) on a USB-stick with http://www.linuxliveusb.com/.
Started the computer with USB as boot and then used GParted to make the right partition active again.
When I restarted the computer it rolled back to W7.
SO W7 is back again and the computer works.

Trying to get W10 on my Acer 3820TG is a nightmare and I might stick with W7.
 

Mark_2

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Aug 20, 2015
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Thanks, this also worked for me.

However I was wondering if it save to remove the drive letter for the boot partition as you suggested? Because when I am trying to do this I get the message: Some programs that rely on drive letters might not run correctly. Are you sure you want to rmove this drive letter?

 

Jatinder_1

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Aug 22, 2015
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I could not execute the third command "attrib<space>-h<space>-s<space>-r<space>bootmgr" as I get the message access is denied. Can you help. I can view the files in Y but cannot delete them because of "need permission from trusted installer"
 

Todd_1

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Aug 22, 2015
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Thanks for posting -- and to others for having confirmed its effectiveness. Not being terribly technical, blindly typing commands on the assurances of strangers was somewhat harrowing, but it worked like a charm (Windows 7, Toshiba Portege notebook computer). Cheers!
 

RedPizzaHead

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Aug 25, 2015
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THANK YOU SO MUCH!
 

Patrick_7

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Sep 30, 2015
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Thank you for your post 1LastNight. It was invaluable to me successfully downloading Win10.
I had to change folder permissions in the Y:/Boot folder, other than that all of your commands worked on Win7.
- Patrick



 

Jim Bailey

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Sep 14, 2010
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Ditto: stupid MS and their fanfare bullshit. Tried to upgrade 4 work computers to Win 10. One upgrade succeeded but is causing endless problems. eg. keyboard delays. Chrome doesn't work. Unwanted MS crap downloaded. IE refuses to retain my preferred home page. Cannot do repairs thru Control Panel. Three Win 10 upgrades failed, including USB installation. Rollback to Win 7 or Win 8.1 failed disastrously on 3 computers. Now every computer is rooted (ie cannot be used productively in my office). Wasted a week of my work time trying to become productive again without success. Emails don't work despite repeated Control panel repair attempts or uninstall/reinstall. Cannot repair previous Win 8.1 machines due to message, ''we couldn't update the system reserved partition''. Used AOMEI to try to increase the reserved partition - reduced used/unused to about 50/50, but still cannot repair Win 8.1 !!!!!! Firing squad for MS !!!! Why can't we do a clean install using the existing License keys?????? Win 10 is diabolically worse than the intro of Win 8.1 ......