Ok, so long story short my hard drive died. I had to get a brand new one, but I don't have any OS disc since they never included the disc with my PC. I 'got' windows 7 home premium 64 bit edition, went through the install, got to completing installation, then just as it finished it told me some error involving it being unable to do something with a certain piece of system hardware. I don't remember the exact message. Now it's just restarting and telling me that windows failed to install, and that I should press ok to restart. This is my first time installing an OS on a new hard drive. There's NOTHING on it at all. Any idea's what I could be doing wrong? Does it matter if you format the HD?