Getting Windows Update error 0x80070643 is really annoying, especially if important security patches or updates are stopped in their tracks. Usually, the reason for this error is damaged system files, software in conflict or updates that are not finished. Luckily, several reliable ways can help you fix windows update error 0x80070643 and restore your system.

Common Causes of Error 0x80070643

• Some elements of Windows Update are scammed.

• Updates waiting in an installation queue

• Troubles caused by third-party antivirus or firewall

• Errors in the system files

Effective Fixes for Windows Update Error 0x80070643

1. Run Windows Update Troubleshooter

The troubleshooter in Windows is designed to spot and resolve update issues without needing additional help. Click on Settings > Update & Security > Troubleshoot > Additional troubleshooters and choose Windows Update to start the troubleshooter.

2. Reset Windows Update Components Manually

Sometimes the error appears when a file used for updating becomes corrupted. Run these commands by going to Command Prompt as an Administrator.

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 

After restarting your PC, look for updates once more.

3. Disable Third-Party Antivirus Temporarily

Sometimes, updating the operating system can affect your security software. Pause your antivirus protection and see if you can install the updates this time.

4. Install Updates Manually

Move to the Microsoft Update Catalog and get the latest version and install it by hand.

5. Perform a System File Check (SFC & DISM)

Launching sfc /scannow and DISM /Online /Cleanup-Image /RestoreHealth in Command Prompt can fix corrupt files in your system.

Final Thoughts

When Windows Update gives error 0x80070643 for a long time, it may help to restore your system from a backup or do a new repair installation. For further information on tech guides and fixing problems, use Datarecovee.com.