I'm mostly a Linux user but I use Windows at work. There is also an additional Windows computer in my house. Although I can't say I dislike Windows there is a singular issue with it that really grinds my gears. The OS assumes way too much about what I want to do. I get it that the defaults are there for the inexperienced or casual users but there really needs to be a way to tell the OS "Hands off! I know what I'm doing". I really don't want arbitrary actions to be made before I consent to them.