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

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.

0 comments No comments
Answer accepted by question author
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.

Was this answer helpful?

800+ people found this answer helpful.
0 comments No comments

146 additional answers

Sort by: Most helpful
  1. Anonymous
    2024-01-12T13:42:32+00:00

    telling pc usrs to mess with disk partitions is gonna brick a lot of pcs rofl

    Was this answer helpful?

    10+ people found this answer helpful.
    0 comments No comments
  2. Anonymous
    2024-01-12T01:25:44+00:00

    At the bare min. Microsoft should have immediately pulled this update once it became obvious users were having issues with it.

    Was this answer helpful?

    10+ people found this answer helpful.
    0 comments No comments
  3. Anonymous
    2024-01-11T03:11:44+00:00

    Add me to the choir. Not working for me. Not going to fool around with partitions. Restarting, etc, did nothing. Will follow the one person's advice who said that service told him to wait a week or more and hopefully it will work then, or be bypassed. Nothing seems particularly affected by the failure to install this.

    Was this answer helpful?

    10+ people found this answer helpful.
    0 comments No comments
  4. Anonymous
    2024-01-11T10:38:41+00:00

    For me it was simpler: I found out running reagentc /info that my recovery partition was disabled. I enabled it with reagentc /enable and then I retried to install the update from the Windows Update and it worked.

    Thanks for the tip!

    Was this answer helpful?

    10+ people found this answer helpful.
    0 comments No comments