content: It seems like the only compelling case for Windows would be the current lead in blockbuster games and other proprietary software that only runs on Windows, such as custom applications or certain specialized applications.  Those three things I just mentioned aren't set in stone, and we will see how things evolve over the next five years, but when Windows 7 goes away, a lot of businesses will have been planning a transition away from anything resembling Windows 8 or 10 IMO.