Error 0x800f0922 for 2020-01 Cumulative Update for Windows 10 Version 1909 for x64-based Systems (KB4532695)

Anonymous
2020-01-31T22:50:04+00:00

Install attempt fails with error 0x800f0922 whether I run Windows Update  to install this update or run windows10.0-kb4532695-x64_a85fd28af075ebfd8b0753d2c2aca244e926c3ce.msu

Running WIndows 10 Pro Ver. 1909 build 18363.592

I have tried every suggestion by HiltonOishi in https://answers.microsoft.com/en-us/windows/forum/all/failed-install-attempt-error-code-0x800f0922/c5eb31d7-f04f-4ff8-9d6f-f39e4f03944b

After the update installs I restart the computer and when it reboots it gets to 93% in "Working on Updates" then I get "We couldn't complete the updates Undoing changes"

Windows Update says this is an optional update. Should I just ignore the problem till the next update?

Windows for home | Windows 10 | Windows update

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  1. Anonymous
    2021-02-09T07:00:20+00:00

    Amor_Fati,

    You've got multiple System partitions. There's an EFI partition on Disk 1 with the UEFI install. There's a System Reserved partition on Disk 0 with a Legacy install which probably is your Win 7. And possibly there's another System Reserved partition on Disk 2 with another Legacy install. You didn't show a "Detail Part" of its partition 1. Windows doesn't like multiple System partitions during a reboot. It might not return to the same one.

    It looks like a good BCD for the UEFI installation on Disk 1. All of the UEFI partitions are mentioned in the right places. But it is a single-boot BCD, meaning the Boot Manager is only aware of the Win 10 installation. There is no Boot Loader for Win 7, only one for Win 10.

    If you want Win 7 with Win 10, really you should dual-boot it. That would eliminate its System Reserved partition. But I think you also need to reinstall it in UEFI mode. I've read it's no good to mix UEFI with Legacy. Do you still use Win 7? If not, then just wipe Disk 0 & repurpose it.

    If Disk 2 is another installation, the same goes for that. Put it into a triple boot or wipe it.

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  2. Anonymous
    2021-02-09T07:48:52+00:00

    Hi thanks for the reply and help. I do not use Windows 7 anymore but I hated Windows 10 so much I kept it as an option so I could go back to it. I have not had any issue with this configuration until this recent Windows update. I have been concerned it was virus related, so I did install Norton which is arguably a bigger cause for concern than the failure to update. Still not sure the root cause.

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  3. Anonymous
    2021-02-09T13:47:20+00:00

    I have two other hard drives in my computer.

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  4. Anonymous
    2021-02-09T18:30:20+00:00

    JohnTimmermans1,

    If either of the two others has an EFI or even a System Reserved partition, it could be the cause of a failure to update, especially of a feature update (new version of Windows).

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  5. Anonymous
    2021-02-09T18:36:09+00:00

    You are welcome.

    Well, can you unplug Disk 0 & put it in a drawer? Or make a system image backup of it, then wipe it. If ever needed, you can restore it again, but you'd have to wipe whatever you repurposed the disk to, if anything. And what about Disk 1 -- what is that?

    It's especially a Feature Update that could be confused with multiple System partitions, but I guess any update could do it.

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