New
#51
Yeah, if your hard drive is clean (formatted) then you will put in the 7 disk, when it asks for previous os disk you put that in, it confirms you are eligable for upgrade, and then you pop the 7 disk back in and it will continue with the install. That way you can use your upgrade 7 key and it will pass activation. That is the way it was explained to me on the phone. If you don't put in your previous OS disk when it asks for it, however, the upgrade key would fail, therefore you would need to install 7 then upgrade that 7 using the 7 upgrade disk in order for the upgrade key to work. So, basically if you have the previous os disk you can install it once, whereas if you dont have the previous OS disk, you would install 7 twice.