Unplug
every single USB device you own.
That little fact, wasted about 8 hours of my life, that I will never get back !
I forgot the keyboard/mouse was bluetooth, DUH.
I had the TV plugged in, and forgot that was probably a display that that the OS would find. DOH !
So, when they say every device, .... yeahh " the ones plugged into the the back too...."
stoopid ... sad to report: - Bill .