I have a clients machine that hasn't updated since March 16. I reset the updater, registered all the required dll's and manually installed required updates. It searches endlessly. Thank you!
I.e., you should: export, zip/compress and attach here the entire CBS folder.
If the CBS compressed folder will be too large, you can check the second post on that thread (to use the sfcfix tool with a script) or you can use a (possibly fast) web service like MS OneDrive, Google Drive, DropBox, Box, Mega, Apple iCloud, Amazon Cloud Drive, and so forth...
- If CPU on that system goes through the roof with high memory usage and the "SFCfix" tool doesn't report/find any corrupted files then you can try this guide as well: