Sadly, when all else fails a clean reinstall may be needed....its really not as bad as it sounds and you wont lose any of your client data, its just a time suck doing it.
https://proconnect.intuit.com/support/en-us/help-article/multi-user-mode/performing-clean-install-pr...
♪♫•*¨*•.¸¸♥Lisa♥¸¸.•*¨*•♫♪
