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KB5049981 fails on Windows 10. Citrix not installed.

Anonymous
2025-01-16T15:13:53+00:00

As per the title, KB5049981 has failed repeatedly. I'm aware that the Citrix Session Recording Agent is a known reason for this update failing, but that is not installed on my PC.

I've tried sfc /scannow and DISM /Online /Cleanup-Image /RestoreHealth, but even after those, this KB fails and Windows rolls it back.

Windows for home | Windows 10 | Windows update

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Ramesh 176.2K Reputation points Volunteer Moderator
2025-01-17T17:33:30+00:00

I'm glad it's sorted. The update could not find the EFI partition because it had an incorrect identifier. Look for BFSVC entries in the CBS logs.

c12a7328-f81f-11d2-ba4b-00a0c93ec93b is the correct GUID for EFI system partition. Ref: set id | Microsoft Learn.

Regards.

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Ramesh 176.2K Reputation points Volunteer Moderator
2025-01-17T17:18:16+00:00

Run:

  • diskpart
  • select disk 5
  • select part 3
  • set id=c12a7328-f81f-11d2-ba4b-00a0c93ec93b
  • gpt attributes=0X8000000000000000
  • exit

Post the output.

See if you can install the updates.

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  1. Anonymous
    2025-01-17T16:41:01+00:00

    Thanks for this response!

    Hopefully this link will work:

    https://1drv.ms/u/c/7584c9522861f364/EZvLfYLOSM1Ks8jRkh5WSDkBQ41hxFxSsuIRnP9p2P0a4A?e=KylUJP

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  2. Anonymous
    2025-01-16T18:24:43+00:00

    As per the title, KB5049981 has failed repeatedly. I'm aware that the Citrix Session Recording Agent is a known reason for this update failing, but that is not installed on my PC.

    I've tried sfc /scannow and DISM /Online /Cleanup-Image /RestoreHealth, but even after those, this KB fails and Windows rolls it back.

    Hello Chris. My name is Don and I saw your post and wanted to direct you to this post about that update as there seems to be a bug with that and a lot of users are having problems with it.

    https://answers.microsoft.com/en-us/windows/forum/all/event-7023-service-control-managersystem-guard/38c44edb-d206-4506-9ed4-eb164acb739c . I do not know whether it will help you or not but wanted to make you aware about a problem with the update. Good luck and hope you get it solved.

    Respectfully,

    Don

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  3. Ramesh 176.2K Reputation points Volunteer Moderator
    2025-01-16T17:45:54+00:00

    Please upload your CBS logs to OneDrive and share the link here.

    c:\windows\logs\cbs\                   <= Zip and upload all files in this folder.

    (How-To: Share OneDrive files and folders - Microsoft Support)

    :: OneDrive sharing options - screenshot ::

        https://imgur.com/a/vZyxpY9

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