NON-Steam games crashing at startup

sirmilkybar

Honorable
Jan 8, 2013
33
0
10,530
Hi guys.
Im having trouble with my non steam games. I recently bough the new Tomb Raider game and Bioshock infinite and both crash at start up. I get a white screen for 2/3 seconds then the message: e.g 'Bioshock.exe has topped working.' This happens exactly the same every time.
I have tried changing the permission level, compatibility settings and opening the games in dx9, 10 and 11. I have also performed all of my PC updates and updated my video card drivers. I don't know what to do now :/
Any help would be greatly appreciated. Thanks in advance, Fin :)

Some specs:
i3
4gb ram
AMD HD 6670
Windows 8