After I updated my game on the blizzard app. Upon opening StarCraftII on the authentication process the game keeps crashing and showing the error Files in your StarcraftII installation are damage. I already uninstalled and re-installed the game 3 times and still the same error.
Sounds like youre running OneDrive? If so, the file structure alterations it causes aren’t compatible with SC2. You’ll want to disable syncing of the Documents folder.
See Microsoft’s support article on how to disable the syncing of specific folders.
Note that simply uninstalling OneDrive won’t fix the issue. The Documents folder must be specifically excluded from the synchronization.