So, guys. I recently replaced an old motherboard on my pc (bought original pc on ebay). New mobo is an asus F2A85V-pro, and along with it I replaced the old processor. I ran into the common issue of windows 7 not working, so I've now purchased a new windows 7 disk, sadly it is an OEM copy. I don't have the original copy that the person who made my pc had, so I'm wondering. Can install this new disk without any problems?