So this morning when i turned on my laptop, it was loading fine up to the windows XP screen where the little bar moves, it freezes for a second then continues again, then the blue screen quickly appears and the laptop automatically restarts. I try again several times, loading it Normally, last best configuration, and safe mode with no luck, then eventually out of randomness it loads windows and i get to my desktop. So i start to scan for viruses, and defgramenting(not sure if this was the right thing to do) but few minutes later BOOM blue screen yet again! What do i do? Thanks in advance for any help.