Black Screen of Death on Windows 10 v1607 Update (aka Anniversary Update - a Feature Update) upon reboot. The only way to get out of it is to power down the computer. Upon reboot, the computer will revert to the previous version of Windows 10 v1511.
So how to get Windows 10 v1607 Update (aka Anniversary Update) to install?
-start the update.
-manually reboot to finish.
-before it reboots, unplug the USB dongle for the Logitech wireless mouse or wireless keyboard.
-the update will install.