Windows 8 shutting down.
Suddenly, (ie as of today), my unattended laptop (W8) is shutting down.
It has never done this before - if left on battery it would enter 'sleep' but touching the touchpad - or sometimes the power button - it would come alive again, but now it is shutting down (not whilst I am using it) and has to start all over from scratch.
I have checked the 'power saver' settings and nothing seems to have altered - 'turn off display after 5 and 10 minutes' and 'sleep after 10 and 15 minutes' - but I thought that sleep was a transient state rather than power off and then reboot.