I hate those things - for some reason, Windows has been updating itself on my various machines at different times and when it reboots it goes straight to what looks like the out-of-box setup screen and asks if I want to enable location services, Cortana, blah blah blah etc. before I can actually use my machine again.
Yesterday I put my laptop to sleep, walked round to the corner shop for a bit of milk and by the time I was back (literally 10 minutes) it'd rebooted and locked me out until I went through all those stupid screens....