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
    2020-09-22T11:23:16+00:00

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

    NO

    You can choose that if you want to

    Keep all your data files and settings

    OR 

    Remove all data

    You can wait till October Patch Microsoft said 

    Microsoft is aware of these installation issues

    We can wait till next patch Tuesday

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  2. Anonymous
    2020-09-22T17:32:53+00:00

    I know, just pause updates for 7 days and pray for it to be fixed.

    That's what I'm going to do, been wasting days trying to force this thing to work

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  3. Anonymous
    2020-09-22T18:37:37+00:00

    Still not working for me.

    Last update that has worked for me is https://support.microsoft.com/en-us/help/4565503/windows-10-update-kb4565503 which was 7/15.

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  4. Anonymous
    2020-09-22T19:00:04+00:00

    I did a chat with a rep and they assured me it should be resolved with the next update. Haven't seen anything come down yet on my system? Anyone else?

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  5. Anonymous
    2020-09-22T19:06:08+00:00

    worked on 2 of my 3 laptops, continues to fail on 1.  i have no idea what the difference is.

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