How to fix Windows Update Error by running SFC Scan?

To fix the Windows Update error 0x80070643 by running the SFC scan you can follow these simple steps:

Open Command Prompt from the search box

Run the command sfc /scannow

Let the scan be done, and it will replace all corrupted files with a cached copy, which you can find in a compressed folder at %WinDir%System32dllcache.