Win8.1 System Click the shutdown key but reboot how to do

Turn off "Quick Launch" to open Power Options (Control Panel > System and Security > Power Options), and then click "Require password on wake-up"

Then click Change currently unavailable settings, and then save the dog before enable Quick Launch.

Generally after this step the problem is basically solved, if not, try the following two steps.

Second, check the "Power Management" wireless mouse will often lead to the operating system in the context of hardware compatibility issues such or that. This, especially with "power management" most prominent. Under Device Manager → Wireless mouse → power Management tab, there is a "allow this device to wake up the computer" option. Under normal circumstances this option is nothing special, the check can let the user by moving the mouse to wake up the sleep of the computer. If your computer appears above the "shutdown" to "reboot" and other unusual conditions, or try to close it,

Turn off the small horn icon in the right mouse system tray on the "Listen to this device" and select "Recording device," and finally turn on the Microphone Properties tab and remove the "listen to this device" checkbox under the "Listen" tab, which often prevents the computer from automatically entering hibernation.