i have an older sata 2 hard drive with windows vista installed on it. im building a new computer that will have windows seven on it on a new drive, but i would like to use my old one as a secondary storage drive on my new build. How can i get vista off of that hard drive without losing all my files on it? I have 400gb of files that i cant afford to lose. or, do i even need to remove vista off of it and just make sure that the new build boots off the new drive?