Ive been using Win 7 ultimate 64 bit for a month without problem. After i used the 7loader 1.5v2 By Orbit30 & Hazar the Dell laptop wont boot. First it gives me a message that I have to update the Bios and then it gets to blue screen (Bsod) I tried to boot up from Win vista and win 7 cds but it still gets the error. I read something about that the 7loader have caused this problem by changing a master boot sector or something. Can anybody help me out, is there a boot utilities or something I can use? I really need help here.