oh i had same problem few months ago , i opened game , i logged in , and few minutes after i joined a GV squad pc stopped responding and then a blue screen appeared ._. ... Idk how to fix that i just tought it's my HDD , so i bought an 120 GB SSD , and works now , no blue screen anymore !o! ... i really don't know what was that blue screen about ... But i do know it was an old 80 GB S-ATA hdd ._. >.> .. Tifa , try borrow an hdd from someone , and test put epw on it and test it , if no blue screen appears m then it's your HDD :C ...