I was recently given a 1-year old HP laptop by a friend with the promise that I had to wipe the computer clean. Since Windows 7 just came out I thought it would a great idea to just purchase Windows 7 and do a clean install. I purchased Home Premium (yes, I now know that Microsoft won't let you do a clean install with this version). I read all of the web sites about double-installing and other techniques to active from the Home Premium (they don't work). I've probably put in the equivalent of a full-days work trying to install Windows 7. I finally found the OEM keys on this site and out of total frustration decided to try one.....sure enough it worked! Now, I've since spent a considerable amount of time reading the info on this site but since I don't really speak the language (I'm an accountant....not a programmer) there are some things I still don't understand. Should I leave the install alone and just use it or should I install it again using one of the installers and a brand-specific OEM key. I don't even remember which OEM key I used.....I just picked one. The only thing I want is for the darned thing to work and for the Microsoft goonies to leave me alone. Thanks for your help.