ok tech guys i need some major help! this am i went to start up my home pc and i got this blue screen of death before windows even started saying something about an unidentafiable boot volume? it said it could be cause by a new piece of hardwear of softwear and to try and start in safe mode and disable it. tried starting in safe mode and it goes to the same screen. it happened once before and i had to completly reformat and loose everything! i have some very important things that i dont want to loose, does anybody know what i can do to fix this???