I'm running Win XP on Parallels on my two home computers (iMac and macbook pro). I'm planning to buy Office 2010 Student version and install it on my virtual xp:s. How the licensing of MS Office goes on virtual machines? I'm worried about the scenario where I have to re-install virtual machines (which happens some time), and because of that I have to install Office 2010 Student version many times. I think that the licensing of MS Office Student version allows installation only for three times?