Windows XP was such a success that it is still running in 2014, 13 years after its release.
After it, Microsoft got even greedier that they released the awful Vista and the solid 7 but with tons of editions: Home basic, home premium (What the fuck?), only missing were the kitchen editions and the bathroom with 3 flavors one to use while pissing, other while taking a crap and a third one while masturbating or having sex.
And they paid the price so they toned down with Windows 8 and I guess they should only release one version like Linux does and spare us money on useless versions in order to get a minor functionality.
What used to work in Bill Gates days won't work anymore, the new generation don't give shit about the minor differences and if Microsoft won't do a major rethinking, and go back to releasing 1 version like Windows 95 or 98 but unfortunately they are controlling the market because of the games as there isn't much for linux and Office that doesn't have a really serious competitor.