that number is always overblown among those 100 million, 80% probably ditched it later the miserable % ones are MS employees and testers its the same story with people buying windows 8, "gee wee woow it went over selling of windows 7 within a month" but, nobody was asking the right question and from 1st hand i saw how it goes person comes into store, any store, asks for laptop or PC, you get 2 options 1. it comes empty with freedos 2. it comes with windows 8 (10) if you take empty one, you will pay it 20% expencier if you take winblows one, "microsoft is sponsoring you so its cheaper" --------> there licence sold don't forget that winblows is also on phones now, so that is also incorporated in statistics of "how many people use it"