Found this video about
Fixing a Corrupted Windows Install
By Chris Titus Tech
"Using SFC and DISM is often done in haste and incorrectly. If you need to fix a corrupted install, then a special DISM command MUST BE issued."
Chris Titus Tech
Obviously, a clean install is faster and better, but this is for those that can't lose programs, data, or licensing. Also a good implementation for repair shops that can't wipe out customer data.