Ran the most recent update on my W10 laptop, now reboots from ctl-alt-del just get the 'swirly wait dots', after logging in, whenever I move cursor to tray, just get 'wait circle'
fix: long press power button, force power off, old start seems to fix things
Also: who was the bright bulb who decided that activation emails would expire after 20 sec? totally not appreciated; made it almost impossible to post here