im running the rc 64 bit .i bought the upgrade of w7 for 50. $ . i was reading somewhere online that you can upgrade from the rc only one time.but they "i think" were suggesting you could install and upgrade then make a clone or ghost image of the install and then be able to use this as a install cd. sorry if this is vague but i was wanting to learn how to do this cause i dont want to have to install an older os and do an upgrade everytime i have to do an install.anyone know what im talkin about .any help would be greatly appreciated!!!