How can I fix Windows update error 0x80070643?

Windows Update error 0x80070643 is a common error that occurs because of the corrupted system files or update components. Resolve by using the windows update troubleshooter, restarting the windows installer service, repairing the system files (sfc/scannow), updating the net framework and temporarily disabling the antivirus software, then trying the update again.
 
Error 0x80070643 usually appears when updates fail due to corrupted components or installer issues. Try restarting Windows Update services, running the Windows Update troubleshooter, and installing updates manually if needed.
 
Resolve Windows Update error code 0x80070643 using Windows Update Troubleshooter, net framework repair, temporarily disabling antivirus software, update component reset, SFC and DISM scan, or downloading and installing updates from Microsoft Update Catalog.
 
You can fix Windows update error 0x80070643 by restarting your PC, running the Windows Update Troubleshooter, updating .NET Framework, checking for corrupted files with SFC/DISM, disabling third-party antivirus temporarily, and retrying the update.
 
The reason behind Windows update error 0x80070643 is normally corrupted system files or an antivirus conflict. Repair it by rebooting your PC, running Windows Update troubleshooter, turning off third-party antivirus system temporarily, updating pending updates manually, and running SFC and DISM tests. The error can also be fixed by updating or reinstalling .NET Framework.
 
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