Forum Discussion
Windows update is always failing with error code 0x80070643 and Defender stopped working after this
Hello imanojpatel,
Please run Windows Update troubleshooter from Settings app > Update & security > Troubleshoot > Additional troubleshooters. See if it works.
If that doesn't work, try this:
Open administrative Command Prompt and type following commands one-by-one followed by Enter key.
net stop wuauserv
net stop cryptSvc
net stop bits
net stop msiserver
Ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
Ren C:\Windows\System32\catroot2 Catroot2.old
net start wuauserv
net start cryptSvc
net start bits
net start msiserver
Close Command Prompt and see if Windows Updates works then.
Let us know if this helps!
I ran the above commands that start and restart various services but to no avail. Getting same error
- DeletedOct 16, 2021Hi
https://www.minitool.com/data-recovery/fix-windows-update-error-0x80070643.html- Jainam_Chheda03Mar 07, 2022Copper ContributorI've tried all the 15 steps. But none of them worked out 😞 ! 😅
- DeletedMar 07, 2022
If you are in the insider program, please analyze the execution of a clean installation of Windows - but everything will be removed please make copies of your personal files:
https://docs.microsoft.com/en-us/windows-insider/ISOs#clean-installation-with-a-windows-insider-preview-iso
https://docs.microsoft.com/en-us/windows-insider/ISOs#clean-installation-with-a-windows-insider-preview-iso
Sometimes an in-place upgrade helps, but it doesn't always work.