game is crashing

after load the game loads but when it should stay after load that you could login it it sudenly crash
using w7 ultimate x64 sp1 build 7601
the hardware isnt a problem i can play at high rez any new game. with high quality\
(hardware is like this i7 3770K, Asus Sabertooth Z77, with Cooler Master V10 and the card thats a .... cant tell sry is not on market)
i even tried that vcorp.ini file - doesnt help
i tried game booster to.
i dont own an radeon card but an nvidia.
the antivirus i have is Bitdefender Internet Security 2012 on autopilot, i when to firewall rulles and they registred automaticaly because of the autopilot thing, i remade them, and add the mu folder to pass antivirus scans, altought it didnt detected any virus so i gues that not a problem.

usualy i fix the problems my self, but i dont have any time now.