When I first installed the games (on Steam), they were working perfectly fine. But a couple days ago, they just stopped working. I didn't install any new drivers or anything, they just don't run. All my other games still work fine, so I have no idea why it stopped working.
I tried turning DEP on and off, and that doesn't do anything. I've also checked the file integrity, deleted the game and reinstalled it, and still not working.
Can anyone please help me? This is kind of ridiculous that a game will just stop working.