Hey guys, I installed windows 7 professional because I couldn't get the Ultimate version on a DVD for some unknown reason. But now I can't use my key to verify it. I tried windows anytime upgrade, but it does not work. I got the following error:
"Enter a different upgrade key: The upgrade key you entered is for an edition of Windows that does not work with Windows Anytime Upgrade. Enter a different Upgrade key"
Anyone knows a way to fix this problem?