Install error - 0x80070643 Windows 10, version 21H2 and 22H2

Anonymous
2024-01-09T10:44:06+00:00

I have been having this error for a long time now, it keeps saying "retry"after i click on it. Anyone know how to fix it?

Windows for home | Windows 11 | Windows update

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Anonymous
2024-01-10T16:09:45+00:00

I googled the actual KB and found this link: https://support.microsoft.com/en-gb/topic/kb5034441-windows-recovery-environment-update-for-windows-10-version-21h2-and-22h2-january-9-2024-62c04204-aaa5-4fee-a02a-2fdea17075a8. It seems that it updates the Windows Recovery (WinRE) environment, and the tip about resizing the partition for that is valid. You can find the link to the instructions in the KB article I linked.

I did that and the installation passed.

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  1. Anonymous
    2024-01-12T18:37:34+00:00

    It didn't help me either. I hope Microsoft fixes this.

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  2. Anonymous
    2024-01-12T18:28:32+00:00

    It didn't help me either. I hope Microsoft fixes this.

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  3. Anonymous
    2024-01-12T07:43:10+00:00

    Thank you! This fixed my problem with KB5034441. However, when I went to run reagentc /enable on step 8, I got an error message about a missing recovery environment. The fix was to use 7zip to browse the Windows 10 install ISO to \sources\install.wim, then extract and open the install.wim in 7zip. Then browse inside install.wim to \1\windows\system32\recovery\ and extract the Winre.wim file. Then copy the Winre.wim file to my \Windows\system32\recovery directory. Then I was able to successfully run reagentc /enable.

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  4. Anonymous
    2024-01-11T17:48:15+00:00

    For the KB5034122, Deactivate your antivirusprogram. If you have a third part-antivirusprogram, then deactivate this. When it's deactivated, you also has to deactivate Windows Defender. When this is done, try again.

    After restart, check to see, if the third part antivirusprogram is running again, and Windows Defender is deactivated, as it has to be, when having a third part antivirusprogram...

    Thank you for your reply, Micael.

    Among my several installation attempts were those before which I deactivated all functions of both Windows Defender, which by default I leave deactivated, and my third-party anti-virus app. Neither deactivation led to a successful installation of the Windows update. Frustrating.

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