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
    2020-09-18T15:06:08+00:00

    Neither uninstalling / reinstalling .NET Framework 3.5 nor an In-Place Upgrade fixed the issue for me. Still get the same error.

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  2. Anonymous
    2020-09-18T15:45:00+00:00

    I tried this script. No change on update instal but did crash my boot drive which windows tried to repair and was unable to. Had to resort to recover from backup. This update, (KB4571756), stinks and ought to be deleted if MS is unwilling to fix it. Sick of bad updates.

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  3. Anonymous
    2020-09-18T17:30:34+00:00

    I so miss XP! Totally customizable, stable--never an issue! Thank god I held onto it till 10! The only reason I upgraded was because I had no choice! Heard all the horror stories with Vista, 7 and 8! Since I got 10 I've had constant issues with hardware and apps and had to replace a lot of apps because they were not backward compatible! Hundreds lost! In all the years I had XP (since 2001, replaced in 2012) I never had to wipe and reinstall as I've had too at least five times with 10 in 8 years!

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  4. Anonymous
    2020-09-18T18:04:55+00:00

    Welp, guess we are going to be waiting for October patch then.

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  5. Anonymous
    2020-09-19T03:14:12+00:00

    Exactly

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