Long story short: The copy of Win7 Ultimate I was given by a friend is invalid. I want to purchase a valid copy of Win7, but do not want the Ultimate Edition. Too many bells and whistles to collect dust. I am looking to buy the Win7 Home Family Pack from the MS website, since we have 3 computers in the house. Is it possible to install the Home edition without having to re-install everything else on my computer? I'm not 100% tech savvy. I recently had my hard drive die and had to re-install everything on a new one so I am not looking forward to having to go through that again. What I want to do is be able to install Home and uninstall the invalid Ultimate without having to lose everything else. I'm not too crazy about partitioning my hard drive or having my machine dual boot, but if it is the only way to do what I want to do, then I can bare to do that temporarily. Also, if i am asking this in the wrong place, please let me know.