I'll try to clarify a bit. My brother has two Vista OS computers he wants to upgrade to Win 7 Home Premium Upgrade. I currently have two Windows 7 HPU computers, but I am building a third. So I need one more license. The three user Win 7 HPU is currently selling for almost the same as a single. In trying to keep within the spirit of the three user household phrase in the EULA I wanted to use the three pack in my household and give my current two licenses to the brother so that he can upgrade his Vista computers.
To further clarify, I do not want to change computers, upgrade, or reinstall anything on my end. I just want to change the license key on two Win 7 Home Premium Upgrade machines.....then, build the new PC and use the third activation of the three user key for it. No OEM licenses are involved...they are all retail. As for my computers, they are all home built, dual and quad core, so of course never had OEM licenses.
Even if I could do it and make it work, I would not want to share a three user license outside of the house. I think it would be asking for trouble down the road, thus the idea of just swapping the license keys. That way they get their own install disks, license key and get to talk to the MS robot.
I'm familiar with the reactivation. Recently did it moving a Vista license to another special use PC in the house. It is a bit of a slow process, but did not have any hold time and it worked on the first try 10-15 minutes I would guess.
So if this makes better sense, the next question is how to change the license key?