Hey, hey, happy Windows, I'm real glad you've installed an update. It's sure must be swell. Thanks for telling that you are so happy with your new update that you are going to spontaneously restart. Just for me. In 2 mins and 9, 8, 7, 6, 5... seconds. The countdown is very James Bond. It's doubly nice that the postpone button is greyed out and there's no red wire to cut. Even better you hid this message under a tiny little flashing systray icon that I just happened to notice.
And there you go, despite whatever productive task my computer might have been engaged in, you've just turned the entire fucking thing off and gone into a long update cycle. The Amish build barns quicker.
Yeah, yeah, there's probably a setting, but I'm sure the mothership has creatively erected a large policy tent over it.