I stepped away from my 2010 Lenovo M72e Ivy Core i5 PC, Win 10 1607, while it was running utilities. Came back to see my browser was off and it was installing updates that require multiple reboots--not a mere update. I powered off. boot back up to a ' trying to restore to previous version' that was a long 15 minutes. Must have been forcing the 17xx update. fun.