My friend's pc is running windows 7 x64 and its a newer pc. He can't launch x64 games. Any x64 games crash instantly on loading up. Running from the install dir causes a "Fatal Error. Steam Must Be Running to Play" and when he launches from Steam they just crash. I noticed Advanced Warfare booted up the splash but it crashed and it didnt even create a default config.cfg in the players2 folder. There are dumps but with nothing of importance in them. He has removed and re installed drivers. installed all redists. completely uninstalled steam and the games and cleaned his registry with RevoUninstaller. We have no clue what is causing this. Hes using an AMD gpu and cpu. Any ideas guys? he really doesnt wanna have to nuke it. he also has all important windows updates. We have tried Advanced Warfare and Shadow of Mordor and Ethan Carter.