The thing is I still run every game and program I have just fine. CSGO, Dota2, Starcraft 2, Total War, MGS5, GTA all run without any issues as they have always been. Only when the client for PRO shifted from 89_2 to 90_0 did this problem occur, so it's likely a problem with the client?
Regardless, I've updated all my drivers and turned off fast startup. Even ran a virus scan, disabled antivirus and set the compatibility mode to win7 or winXP service pack 2/3. Nothing works.