No official numbers have been released, but 825 mil is what Microsoft’s internal documentation, spotted by Thurrott.com, says. According to people wiser than me, the number seems to be about right, since Windows 10 is one of the most popular of Microsoft OS’ ever made. The leaked documentation also tells us that 32 million people have downloaded Windows 10’s mobile applications – a resounding success, seeing how Microsoft never really got the hang of the mobile market. Windows Edge itself got downloaded 4.5 million times, and Microsoft Launcher 4 million times.