windows update error : 0x80070643

Question

Like many others, I am challenged with this error.

https://support.microsoft.com/en-au/topic/kb5034439-windows-recovery-environment-update-for-windows-server-2022-january-9-2024-6f9d26e6-784c-4503-a3c6-0beedda443ca

The workaround suggests resizing the RE partition to make some free space.
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 created a 1500 MB Recovery Partition and then applied the image, but still I am getting this error. It seems like a widespread issue but the suggested workaround i.e. having 250 or more free space in the recovery partition didn't work for others as well.

Answer 1

Hi,

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

How does reagentc /info show up after completing the above steps?

Answer 2

What's your disk partition style a GUID Partition Table (GPT) or a Master Boot Record (MBR)?

please try the steps 3 to 8

3 . To disable the WinRE, run reagentc /disable

....

8 . To re-enable WinRE, run reagentc /enable

Manually resize your partition by 250 MB