Question for folks: Trying to track down an issue my sister is having with the game.
What were/are the causes for the CTD where it happens real fast and you don't even see an error message or anything. It's the kind of CTD where you're playing, you blink, and you're starting at your desktop in a flash.
As far as I can tell that's just Skyrim being Skyrim.
I did find the 4GB address aware patch helped, though. It used to happen about once an hour, but since installing that it happens maybe once every six or seventh play session, if even that. Give that a try.