For some reason the game will crash randomly or at specific spots. Like at the start the game will either crash in the first fight or the fight there after. The problems started during the 5th patch. Even the old launcher is affected.
Edit: Well it seems Square decided to say F certain people as it seems alot of people are having this problem. I paused my Virus software though it only lasted me till I got past the elevator then the game crashed again. Sigh well have to wait for someone to think of something I guess.