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
    2020-10-01T22:22:02+00:00

    I tried everything listed in this e-mail and none of it worked sadly! I guess this is the end of the road for installing patches on this windows 10!

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  2. Anonymous
    2020-10-01T22:06:04+00:00

    @DavidPrater3

    Another user indicated success by using the Update Now button from this website. This would basically do an in-place repair, keeping your data files and installed apps:

    https://www.microsoft.com/en-gb/software-download/windows10 

    Have you tried installing the latest Cumulative Update (KB4577063) dated October 1, 2020? The Update now button mentioned above ought to incorporate that CU also.

    https://support.microsoft.com/en-gb/help/4577063/windows-10-update-kb4577063 

    See below, if the new CU does not fix everything:

    ___________________________________________________

    In my previous reply, I was wrong to have focused on the "Sandbox" folder name. Microsoft-Windows-Printing-WFS-FoD-Package~31bf3856ad364e35~amd64~en-gb~.cab is a standard part of a new Windows 10 OS image (in GB). It is the Feature on Demand for Windows Fax and Scan (which is the WFS portion of the filename). https://docs.microsoft.com/en-us/windows-hardware/manufacture/desktop/features-on-demand-non-language-fod

    When you mentioned that sfc and DISM did not work, what exactly happened? Did they run and show no errors at all, or did running them show issues that were not repairable?

    A good starting point might be to delete any existing temp folders, such as the C:$WINDOWS.~BT folder and contents, as well as the C:\Windows\SoftwareDistribution folder. You might need to use SHIFT-Restart to get a boot menu, where you can then browse to find Command Prompt. You can then find these folders and delete them using commands such as:

    rd /s /q C:$WINDIOWS.~BT

    rd /s /Q C:\Windows\SoftwareDistribution

    Note that on some computers, Windows and the Users folder may appear on some drive letter other than C: in this mode, so check first.

    You could try adding/removing Windows Fax and Scan to see if that helps in any way:

    DISM /Online /Remove-Capability /CapabilityName:Print.Fax.Scan~~~~0.0.1.0

    DISM /Online /Add-Capability /CapabilityName:Print.Fax.Scan~~~~0.0.1.0

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  3. Anonymous
    2020-10-01T13:47:20+00:00

    I can't believe this thread is still going. You might have read but after doing the In-place repair, that particular update never showed up again, even in the update history. 

    I'm positive this month's update will fix everything and we'll never see anything of this likes again.

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  4. Anonymous
    2020-10-01T13:07:06+00:00

    Used to it by now. Not the first time either.

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  5. Anonymous
    2020-10-01T12:58:34+00:00

    I don't know if is the same solution, but my problem was solved with this software, indicated by the Windows Support: <https://www.microsoft.com/pt-pt/software-download/windows10>

    Thank you.

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