As far as I see, Windows has always been different for the sake of it; it is a prime example of reinventing the wheel. What makes it good is its market share me

As far as I see, Windows has always been different for the sake of it; it is a prime example of reinventing the wheel. What makes it good is its market share means things are almost always guaranteed to run on it, otherwise it is terrible and always has been since MS-DOS. If it didn't have "useful software", what else would it have going for it?