Same problem here from the day I bought this crap.
I even bought a new 800W gold certified power suply for my nvidia 570 gtx even I’ve never had any problems with any games so far only with GW.
I’ve reinstalled my system from win7 to win8 with all the latest drivers.
I’ve read all the threads about this problem and try everything with no results.
I am still crashing randomly.
This game is costing me a lot of money and I can’t even play it.