Alright so after trying all the different methods of repairing it other than reinstalling or letting my steam check the local files (ie, admin mode, compatibility to previous windows, ect.) i decided to just turn my pc off and come back to it in a few hours.

I started the game again like I always do (but left the admin mode and compatibility to win 7 enabled) and now the boot, launcher and updater did their own proper update before starting the launcher and letting me log in.

I suppose it must have been me being in to much of a rush