I was just looking around for solutions to installing XP on my pre-installed Windows 7. I am using a lot of programs that work with XP but not on 64 bit Windows 7. The problem is that I'm using a netbook without an optical drive, and the Windows 7 installation files are on a hidden partition on the HD. I have no install DVD's. I torrented the Win 7 ISO files, hoping to use my registered Windows 7 key, (if I can find and decrypt it from the registry). I hope someone can help me out. Thanks!