In Windows 8.1, you can use the shutdown options (hibernation, restart, system shutdown) through the Charms.
Select [Settings]in [Charms] in the Desktop or on the Start screen.
When you press the [Power] icon on the [Settings] menu, the power options appear as shown below.
When you press [
] +[I], the [Settings] menu appears.
Press the Start button [
] on the left bottom
of the Desktop by using the right mouse button and then the pop-up
window appears.
Press [Exit and Logout] and then select System Shutdown.