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
    2024-01-12T22:23:09+00:00

    This trick doesn't work for me

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  2. Anonymous
    2024-01-12T21:53:30+00:00

    In addition to the suggestions given by other posters for using the instructions on the following page about resizing the recovery partition:

    https://support.microsoft.com/en-us/topic/kb5028997-instructions-to-manually-resize-your-partition-to-install-the-winre-update-400faa27-9343-461c-ada9-24c8229763bf

    I also found the following page helpful which additionally describes how to get a missing winre.wim file in case enabling the recovery environment with "reagentc /enable" fails after resizing the partition:

    https://www.libe.net/en-windows-recovery-partition

    Be sure to note the comment at the bottom about the difference between disk IDs for disks using MBR vs. GPT partition structure.

    I was seeing the problem on 3 PCs that have been migrated to SSDs with Samsung Magician, so I wonder if this problem may be a side-effect of the re-partitioning that happens during the migration process.

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  3. Anonymous
    2024-01-11T16:20:57+00:00

    Worked for me, too. Don't like having to go into the bowels of the OS. I fear that I'll make an unrecoverable mistake or the directions given don't provide the same response on my PC and I'm lost. It appeared to me, however, that if I didn't fix this problem, I would never be able to install another update as the updater would always open with this error and no way to get around it. Fortunately, this procedure for expanding the partition did work and solved my problem with update error 0x80070643 on update KB5034441.

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  4. Anonymous
    2024-01-10T23:15:45+00:00

    Yeah, it caught the period in the end. Stupid forum software. Edited the post now to work.

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