Hello, I build a PC in Mach and it was working perfectly until now, a few days ago I reinstalled Windows 7 Professional 64 bit and everything worked nicely. Yesterday, I lost power and my pc was shut down improperly. I turned it back on and it seems to boot fine but for some reason I get random Blue screens, freezes, browser crashes etc. My computer almost never crashed before but after the power outage, it stopped working properly. Can you guys give a few tips on how to troubleshoot or find the issue? I have a feeling that my old sata 1 160gb seagate hard drive might be to blame and since it is so outdated compared to the rest of the pc, I ordered a WD Caviar Black but it will come in a week or so and I need a working computer until then.