Windows XP Pro was the last Windows that you could install on as many of your machines as you wanted without contacting M$. When I found that out, I knew that XP would be my last Windows and that I would inevitably switch to Linux. When XP became totally obsolete, I permanently switched over to Linux Mint. I've never gone back to Windows and I have zero reason to ever do so. I promote Linux whenever I can.
Windows XP Pro was the last Windows that you could install on as many of your machines as you wanted without contacting M$. When I found that out, I knew that XP would be my last Windows and that I would inevitably switch to Linux. When XP became totally obsolete, I permanently switched over to Linux Mint. I've never gone back to Windows and I have zero reason to ever do so. I promote Linux whenever I can.