Presently I'm running XP Pro and Vista Premium x64 via dual boot. Each OS is located on it's own partition on a 500GB drive, I also have a 1TB storage drive with no OS. I've downloaded the Windows 7 beta and I want to give it a whirl. Can I tri boot? Or am I really asking for trouble? If I do put this on my storage drive, will it have to be formatted? I'm pretty sure it's setup to be a basic drive with NTFS. Backing up the 437GB of data on it to my Atom is a rather slow process as it only has 10/100 LAN.