Ok, don't know if this has been asked before, but I want to use my work laptop as a PC as well. Here are my two options: Option 1, install Win 7 on "slave" drive, the HP laptop I have for work has two hard drive bays, and dual boot Win 7 Pro and Win 7 Ultimate. Option 2, install Win 7 Ultimate on "third" hard drive and just swap the drives when I want to go from work to play. The hard drive bays are quite easy to get to and remove, our sys admin doesn't know that I have a second drive installed for my files that I have to back up every 6 months. Every 6 months because their idea of problem solving is not fixing the problem, but re-imaging the computer. I don't want to say who I work for and who owns the computer, but I am tired of traveling and taking to laptops with me every time. I will reply to this post later with the exact specs of the HP laptop that is in question. Any suggestions would be greatly appreciated!