- May 9, 2005
- 2,044
- 1
- 81
I have a total of 5 computers (including a laptop) running in my house right now. I have a valid copy of Windows XP Pro that I have been using on all 5 computers with no problems for a couple of years now. I just purchased Vista Ultimate and was wondering if I could do the samething or would I be forced to buy 4 more additional licenses? If i tried to install Vista on all 5 computers what could go wrong?