I have dual hard drives and one has Windows Vista Ultimate 64 bit installed on it. Instead of wiping that drive (because I have programs and a lot of media files I'd rather not have to deal with reinstalling / restoring), is it possible to install Windows 7 to the other HDD and set the boot order to begin with the Windows 7 drive? I was not sure if having two OS's installed but on seperate disks would cause some issues or not.