Remember folks, even when you 'buy' windows, it's not a purchase, it doesn't belong to you. I paid for Windows 10 on my one-and-only gaming machine. I am one

Remember folks, even when you 'buy' windows, it's not a purchase, it doesn't belong to you. I paid for Windows 10 on my one-and-only gaming machine. I am one user. I upgraded my gaming machine (same hard disk & Win 10 installation). Now it watermarks the screen with "Activate Windows. Go to Settings to activate Windows." even over the top of games.