New
#1
Clean install on a desktop that had an Win7 Pro upgrade from XP Pro
A couple weeks ago I finally got around to installing Win10 over the top of Win7 Pro. It is not running very well. Not terrible but it seems to be a little slow and I'm thinking I'd rather do a clean install. I have already backed up my data files and also have a disk image of Win7 made prior to the Win10 upgrade.
When I did the upgrade I did not have to enter any registration/authorization numbers. Apparently the recent Win10 upgrade took it from the info in Win7.
Now as I contemplate starting fresh I am wondering if the Win10 fresh install is going to ask me for the authorization. Here is where it gets tricky. The Win7 Pro that I was running started out as either XP Pro or Vista Home Premium. I had Vista Home Premium on my machine but I had both Vista Home Premium and XP Pro disks when I was doing the Win7 Pro upgrade. I remember having to call Microsoft during the Win7 Pro upgrade to get them to make the Win7 into a Pro version because the computer was at the time running Vista Home Premium, but I wanted Pro. I had a Pro upgrade disk, and an original XP Pro disk proving I owned Pro.
So the question is - when I do the fresh install is Win10 going to ask for an upgrade code and will it accept my Win7 Pro Upgrade authorization code?