I just built a new computer and so far everything is working fine. The computer has a windows 7 OS on the new hard drive. What I want to know is, can you move over a old hard drive from a preexisting computer. The old drive has windows XP that was clean installed, without any drivers updated or installed. It is just a hard drive that had the OS installed then left in that condition. Can you move it over and just plug it in to the sata ports to have a dual boot pc, or will the computer eventually end up showing the BSOD?