Windows 10: How to fix Windows update failing install 0x80070643

The update kb2267602 version 1.417.748.0 will download but gets stuck at 66% when installing, then fails. And now my computer will not open any programs, even as administrator, including CMD or Powershell. Would resetting my computer be a possible fix for that? I can't do much else as I can't use CMD or Powershell to fix anything.

:)

 

Windows Updates failed to instal

I just did step one and they have just all installed.... thank you so much.... it was quite frustrating having that update window pop up every 5 minutes and failing to instal every time

Thanks mate

 

Update of Windows 21H1 with KB5001716 constantly fails with 0x80070643

Hi On my Lenovo X200 x64 based PC with windows10 21H1 windows update just flashes with KB5001716 and then gives error 0x80070643. No 3. Party AV, only defender. I have tried suggestions as described in Windows 10 Update KB5001716 Fails to Install - Solved and 10 Best Ways to Fix Windows Update Error 0x80070643 i.e. 1. Restart Windows Update Services 2. Reboot PC and Retry Update 3. Run Windows Update Troubleshooter 4. Run .NET Framework Repair Tool 5. Reset Windows Update 6. Perform a Clean Boot 7. Install Updates via Microsoft Update Catalog 8. Run an Anti-Malware Scan 9. Run SFC Scan or DISM Tool Any suggestions?



Solution: As suggested by Megahertz I made in-place upgrade and that solved the issue. I.e. PC upgraded to 22H2, still we don't know why upgrade from 21H1 failed.

 

error 0x80070643 (update)

Hey

Try to apply the update manually As suggested by Microsoft. I just wrote a
step by step guide.

However be sure that the update itself is downloaded and that the installation part is failing, and not the downloading part.

Hope it helps you