Ive not had "must update on the spot right this very second," but ive had countless, "we will update the second u power off or attempt a restart. If you try and restart into ur linux partition, we will somehow ensure u fail to boot right up until u got thru with our forced update." Which also sometimes goes hand in hand with, "oops, i was supposed to update, but i shit myself instead. Youre going to need to try again at least once or twice. Dont worry, whether the update goes thru or not, itll only take a maximum of 90 minutes."

Windows can fuck its facehole thru its ass as far as its auto updates are concerned for all i care.