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.

I have officially given up. I used Microsoft's 'WuReset2.0.bat' to delete all pending Windows Update files on my PC, then Microsoft's 'WUShowHide.diagcab' to select the KB4566782 file and HIDE it so it never shows up again. Hopefully, a future 'Cumulative Update' will actually work and make this LOSER UPDATE unnecessary. I find it incredulous that Microsoft most likely knows this problem exists but has not OWNED it or provided a SOLUTION. It can be fixed by them; after all, it's only software.

Unfortunately, The KB4577063 still have the same issue: Error 0x800f081f

The switch from Windows 10 version 20H1 to 20H2 is not really a normal major update. 20H2 is using the same Cumulative Updates as 20H1. There is just a very small enablement package that is run to switch between 20H1 and 20H2. I believe that it simply enables changes that are already installed and in a dormant state. I was also checking the past history of Cumulative Updates. The ones labeled Preview are not identical to the final "patch Tuesday" monthly CUs, so there is some hope of change this week. It does sound like doing an in-place repair/upgrade has the greatest chance of success, even if this has failed before. Doing things such as a "clean boot" first and disconnecting all unneeded peripherals first, such as USB devices, or SD cards, etc. may help. A clean boot means disabling all Startup items shown in Task Manager and using msconfig to disable all non-Microsoft Services, then restarting before attempting the upgrade. I usually have to do this on my wife's older PC prior to a new Windows 10 version upgrade.

Another broken update go figure. Least it won't install and break our machines like other updates. Sad really when you have to research an update before installing to make sure it won't break anything, what a joke!

As far as I know, both the source and the fix of this issue are unknown. We don't know what causes it; and we don't know, for the machines that got it fixed, what exactly went wrong and how it randomly gets fixed. Either way, I strongly believe the next major update (20H2) should actually be able to fix a lot of these issues.

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

Anonymous

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.

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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217 answers

Anonymous

2020-10-04T22:44:21+00:00

I have officially given up. I used Microsoft's 'WuReset2.0.bat' to delete all pending Windows Update files on my PC, then Microsoft's 'WUShowHide.diagcab' to select the KB4566782 file and HIDE it so it never shows up again. Hopefully, a future 'Cumulative Update' will actually work and make this LOSER UPDATE unnecessary.

I find it incredulous that Microsoft most likely knows this problem exists but has not OWNED it or provided a SOLUTION. It can be fixed by them; after all, it's only software.
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Anonymous

2020-10-04T17:23:27+00:00

Unfortunately, The KB4577063 still have the same issue: Error 0x800f081f
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Anonymous

2020-10-04T15:48:53+00:00

The switch from Windows 10 version 20H1 to 20H2 is not really a normal major update. 20H2 is using the same Cumulative Updates as 20H1. There is just a very small enablement package that is run to switch between 20H1 and 20H2. I believe that it simply enables changes that are already installed and in a dormant state.

I was also checking the past history of Cumulative Updates. The ones labeled Preview are not identical to the final "patch Tuesday" monthly CUs, so there is some hope of change this week.

It does sound like doing an in-place repair/upgrade has the greatest chance of success, even if this has failed before. Doing things such as a "clean boot" first and disconnecting all unneeded peripherals first, such as USB devices, or SD cards, etc. may help.

A clean boot means disabling all Startup items shown in Task Manager and using msconfig to disable all non-Microsoft Services, then restarting before attempting the upgrade. I usually have to do this on my wife's older PC prior to a new Windows 10 version upgrade.
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Anonymous

2020-10-04T13:49:19+00:00

Another broken update go figure. Least it won't install and break our machines like other updates. Sad really when you have to research an update before installing to make sure it won't break anything, what a joke!
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Anonymous

2020-10-04T11:20:36+00:00

As far as I know, both the source and the fix of this issue are unknown. We don't know what causes it; and we don't know, for the machines that got it fixed, what exactly went wrong and how it randomly gets fixed. Either way, I strongly believe the next major update (20H2) should actually be able to fix a lot of these issues.
Was this answer helpful?

0 comments No comments