Somebody walked off with my Pro disk so all I had to install was Home. SATA... FTW Nope...didn't open the case. Tried the Disc Management thing. I don't want to format the drive because it has all my pictures and music on it. 40 Gb worth of stuff...ya know? When I put the drive in a machine with Pro on it, it is found and I can access all my stuff just fine.