Windows 10: “We couldn’t update system reserved partition” error updating Windows 11 Pro

Discus and support “We couldn’t update system reserved partition” error updating Windows 11 Pro in Windows 10 Gaming to solve the problem; I have followed the instructions laid out... Discussion in 'Windows 10 Gaming' started by Andeeze, Feb 22, 2025.

  1. ANDEEZE
    Andeeze Win User

    “We couldn’t update system reserved partition” error updating Windows 11 Pro


    I have followed the instructions laid out here:https://support.microsoft.com/en-us/topic/-we-couldn-t-update-system-reserved-partition-error-installing-windows-10-46865f3f-37bb-4c51-c69f-07271b6672ac#:~:text=Cause,and%20can%20fill%20it%20up.The fonts have been deleted freeing up 16MB of space, but the secure boot drive still has 84MB used and the upgrade still fails.I have also tried using https://www.partitionwizard.com/download.html to extend the drive, but since it is FAT32 the tool does not allow this.What else can I do? I have 500MB unallocated space to use.

    :)
     
    Andeeze, Feb 22, 2025
    #1
  2. RAMESH SRINIVASAN
    Ramesh Srinivasan Win User
    Ramesh Srinivasan, Feb 22, 2025
    #2
  3. ANTHONY GAL
    Anthony Gal Win User
    Anthony Gal, Feb 22, 2025
    #3
  4. ROBERT ALDWINCKLE ON FORUMS
    Robert Aldwinckle on forums Win User

    “We couldn’t update system reserved partition” error updating Windows 11 Pro

    We couldn't update the system reserved partition - Windows 10 1803 Updates won't install

    The usual suggestion is to clean it out.

    https://support.microsoft.com/en-us/help/3086249/we-couldn-t-update-system-reserved-partition-error-installing-windows

    Are you implying DISM is showing a message about bootmgr? What is the message exactly? You may need to use a different DISM syntax and point to a /source:

    Otherwise it may be bogus. For a possibly related incident see

    https://answers.microsoft.com/en-us/windows/forum/windows_10-update-winpc/windows-10-update-kb3213986-fails-repeatedly-with/46d9b1af-71a6-4d39-acaf-c3882047ac12

    What are the details for that?

    HTH

    Robert Aldwinckle

    ---
     
    Robert Aldwinckle on forums, Feb 22, 2025
    #4
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“We couldn’t update system reserved partition” error updating Windows 11 Pro

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