Here's something I discovered yesterday after having mine "off" most of Sat thru Sun morning only to find my battery level at 17% when I turned it "on": ALL the power button settings in Windows on the T200TA-C1 are set to SLEEP. So when you select "Shutdown" all it's really doing is putting it to sleep. So go to the Control Panel, Power Options and select "Choose what the power buttons do" and you can make it really power off.