Windows Update issue (failed to install) , 0x80070643

Question

Dear All, kindly asking for help regarding Windows updates on our Windows 10 and Windows 11 computers , we have some computers not able to install monthly updates and stay on the retry state Error code is : 0x80070643 I have tried to fix Windows with sfc/ scannow , chkdsk c: /f cleaned the Windows update repositories reset the services the issue is still happening and Windows updates not get installed on some computers any idea? Thanks

Answer 1

Same issue on an extremely clean and new Windows 10 Pro installation. Flow_p's link to the already reported problem was useful. The inner solution was changing the recovery partition size. I followed this guide exactly and rebooted, and the update installed:
https://support.microsoft.com/en-us/topic/kb5028997-instructions-to-manually-resize-your-partition-to-install-the-winre-update-400faa27-9343-461c-ada9-24c8229763bf

Answer 2

This information https://www.northshore-it.com/tips/how-tos/manually-resize-your-recovery-partition/ I did exactly what he said (nothing else here worked) followed it to the letter, and it worked perfectly. I didn't want to mess with anything on my computer, at first but, it looked simple enough to follow. Hope it helps

Answer 3

What is the solution for users that have no recovery partition?

I've received error 0x80070643 from Windows Update every week with the last one on 02/21/2024, then no more attempts to install the fix. Windows Update for now has stopped trying to automatically install KB5034441. The fixes Update installed after that date are KB5034843, KB5001716 and KB5035845.

Answer 4

You only need this if you have a WinRE active. If you don't have it, leave it alone.

Answer 5

Any update on these updates not installing? security update error 0x80070643