This is one of the best operating systems because of the compatibility & functionality. You won’t have any problems running this on your Windows PC or if you have an emulator like bootcamp, you’ll be able to run this on a mac based PC as well.
Windows 7 Ultimate comes with activation that will allow you to use the OS without any problems. You'll also get updates when they become available
I have both 32 & 64 bit versions available
Technical Support is available through Microsoft or I can help you, whichever you prefer