I mistakinly purchased one copy of Windows 7 and installed it on four of my home computers (three desktops and one laptop). All the computers had Vista on them previously except for one desktop which had XP on it. All the computers were working fine until started
getting a notice that Windows 7 needed to be ACTIVATED. I was able to activate it on one desktop (one of the former Vista machines) but the other 3 computers can't be activated.
Two questions: 1. Do I need to go out and buy 3 more copies of Windows 7 and install it on the other 3 computers?
2. How do I install Windows 7 onto a computer that already has Windows 7 on it or do I just need to change the Product Key?
You can purchase the required three (3) additional Windows 7 licenses directly from the
Microsoft Store. Make sure to purchase the correct Windows 7 licenses for the edition you installed. Once
you have the additional licenses, you can simply change the product keys. Please see:
How to Update Your Product Key in Windows 7.Carey Frisch