They tried to destroy linux and free/libre software, and when that didn't work, they started cornering the market and pushing for a move from "Free" to "Open Source." They also support SaaS model, and have made it next to impossible to get a new computer without their mediocre OS. On top of that, their OS is full of spyware, and is starting to become adware too.
But that all pales in comparison to the fact that you do not own your own OS: you can run Microsoft's OS, but you can't modify it or share it.
Oh, and this falls more in the realm of personal preference, but the deliberate lack of customizability is a real pain in the ass.
4/10 OS, only slightly better at disguising its capitalist greed than Apple.
Robert Glasper - Black Radio
Sungazer - Perihelion
Unexpect - Fables of the Sleepless Empire
Frank Zappa - Civilization Phase III
Will Wood - "In case I make it,"
The Algorithm - Brute Force
Devin Townsend - Empath
Miles Davis - removed Brew
Oneohtrix point Never - R + 7
Panopticon - Autumn Eternal
King Capisce - Memento Mori
Cynic - Kindly Bent to Free Us
Archive - Controlling Crowds The Complete Edition Parts I-IV
Intronaut - The Direction of Last Things
SHT GHST - 1: The Creation
Dan Deacon - America
Opeth - Ghost Reveries
Steve Reich - Music for 18 Musicians