Vista Ultimate x64


New Member
Hey guys,
I've recently upgraded to vista ultimate x64, on my hp laptop model dv6648se, and to make a long story short, everything was going fine until i downloaded sp1, and now it won't boot, I can get into the bios but after that it just goes blank I got the software from a friend so i don't have the repair disk just yet but does anyone have any idea in getting around this problem?