Cumulative update won't install (KB4571756) (Error 0x800f081f)

Anonymous
2020-09-11T07:31:06+00:00

I am running Windows 10 Home 2004 (Build 19041.450). Windows Update notified me that there was a cumulative update available to install (2020-09 Cumulative Update for Windows 10 Version 2004 for x64-based Systems (KB4571756)). When I told it to install the update, it will download and go up to "Installing - 100%" and then just show this error: 

I've tried the following in an attempt to fix the error:

  • Run "sfc /scannow" in an elevated command prompt
  • Run "DISM.exe /Online /Cleanup-Image /RestoreHealth /Source:<Source of clean Windows 10 2004 ISO created using Windows Media Creation Tool> /LimitAccess" in an elevated command prompt
  • Uninstall and reinstall NET framework 3.5 from "Turn Windows features on or off" in Control Panel
  • Manually download the specific update from the Microsoft Update Catalog and install it
  • Stop the Windows Update service and delete the Windows Update cache located in "%SystemRoot%\SoftwareDistrubution", then restart the service

Obviously, none of these worked so I'm looking for any other solutions to this problem. Any help is appreciated.

Windows for home | Windows 10 | Windows update

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  1. Anonymous
    2020-09-21T16:07:11+00:00

    Okay so how stable are these Preview Updates? I hope it doesn't bring any more bugs along lol.

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  2. Anonymous
    2020-09-21T14:49:17+00:00

    Did not solve. always the same 44% / 100 % failed   (0x800f081f).

    What about the Microsoft Team? Are you working on this.

    Thanks Rudi from ger

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  3. Anonymous
    2020-09-21T14:08:22+00:00

    I downloaded WuReset2.0.bat and ran as administrator. It cleared the backlog of old update files and KB4571756 installed without a problem.

    Problem solved at last

    Ian

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  4. Anonymous
    2020-09-21T13:12:48+00:00

    Is It Formats all of my C drive Files and Data??

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  5. Anonymous
    2020-09-21T07:50:31+00:00

    Yeah the in-place upgrade using the media creation tool is a 50/50 chance. It works for some and doesn't for others. It's no perfect fix, and I couldn't resolve it by doing that either.

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