Hi, I have two hard drives on my system, both 80GB. I have XP Pro on a 60GB partition as C: on the first drive, the rest of the first drive is unpartitioned space. My second drive has a 20GB partition (F:) for data backup from C:, I also have another 3GB partition (P:) for my virtual memory from my XP Pro on C:, the remainder of the second drive is unpartitioned space (approx 57GB) I want to install Vista on to the unpartitioned space on my second drive, (thats how I have been playing around with XP Pro 64) I see that Vista takes over the system (bit stupid really, having a beta take over the system isn't it?) so when I decide to dump vista where does this leave my XP Pro installation? Cheers from Peter.