FIX: Couldn’t Update the System Reserved Partition Error

Windows Troubleshooting
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Originally published at: FIX: Couldn’t Update the System Reserved Partition Error

When trying to upgrade their computers to Windows 10 (or Windows 8 or 8.1, for that matter), countless Windows 7 users received an error message stating “We couldn’t update the system reserved partition”. The upgrade would fail and this error message would be displayed no matter how many times an affected user would try upgrading…

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None of this seems to be working for me. Minitool will not let me change the sizes, and the mark as active is blacked out and unclickable.

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Thanks for the article. Unfortunately I cannot change my C drive on windows 10 into an active partition (it is greyed out). Nor can I add an additional drive on the EFI system partition drive (61 MB). Please help

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Great article Kevin. Thank you. This worked perfectly for me. I appreciate the multiple methods. Other posts that I saw regarding deleting files on the System Reserve Partition involved installing 3rd party tools which I never like to do on a server. I did notice that in Powershell I had to include the exe at the end of the icacls command. Some of the switch parameters were case sensitive as well.

I think I’m going to disagree with Mike- to me you sure seem to know what you are doing :slight_smile:

Thanks again

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“are you sure you know what you are doing?”

Are you asking me if i am sure what i have written on this guide works?

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chkdsk Y: /F /X /sdcleanup /L:5000 command is not recognized as a valid parameter.
…are you sure you know what you are doing?

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please upload a screen shot.

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It’s administrator, incorrect commands won’t work so your system cannot be messed up.

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I typed in icacls . /grant home:F /t and it is not recognized as an internal or external command, operable program or batch file

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is it administrator or administrators (you typed both) …please don’t mess up my computer system.