Alright so i recently built a PC and bought a copy of windows 7 Home Premium OEM to install on it. I followed the instructions and put the disk in, restarted the PC, and the Windows downloading files showed up and once the bar loaded all the way, My PC would get a error message. saying Windows failed to start. A recent hardware or software change might be the cause. To fix the problem it says to insert my windows 7 disk again. But the same thing happens again. Anyway I am wondering if anyone knows what is going wrong and what I can do to fix this.