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.

The update now option is for people not on windows 10 who want to update to windows 10. When I click on, it downloads an app and tells me I am already updated.

Clicking the "Update Now" button downloads the update manager, which simply tells me my system is already up to date. It only wants to update to the 2004 release but not to the latest CU's.

19041.546 optional update is now available. https://support.microsoft.com/en-us/help/4577063/windows-10-update-kb4577063

Did you try the Update now button also? https://www.microsoft.com/en-us/software-download/windows10 It might not incorporate the October 1 Cumulative Update until next week. I found today's CU on my wife's PC listed under Optional Updates on the Windows Update page in Settings.

@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 New cumulative update (downloaded from the update catalog) still refuses to install.

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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Anonymous

2020-10-02T10:17:36+00:00

The update now option is for people not on windows 10 who want to update to windows 10. When I click on, it downloads an app and tells me I am already updated.
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Anonymous

2020-10-02T09:20:36+00:00

Clicking the "Update Now" button downloads the update manager, which simply tells me my system is already up to date. It only wants to update to the 2004 release but not to the latest CU's.
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Sumit 44,306 Reputation points Volunteer Moderator

2020-10-02T01:26:20+00:00

19041.546 optional update is now available.

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

2020-10-02T00:37:31+00:00

Did you try the Update now button also?

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

It might not incorporate the October 1 Cumulative Update until next week. I found today's CU on my wife's PC listed under Optional Updates on the Windows Update page in Settings.
Was this answer helpful?

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Anonymous

2020-10-01T22:57:19+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

New cumulative update (downloaded from the update catalog) still refuses to install.
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