Level: Windows 8 Basic Tutorial
1. When you are in the desktop or Start Screen move the mouse to the bottom right hand corner or press (Windows Key + C) Windows 8 shortcut to open the charms menu.
2. Click on Settings button
3. Click Power button
4. You will get the option to Shut down or Update and Restart Option.
Why windows 8 Shutdown button is hidden?
You are not required to shut down Windows 8 all the time. You can easily log off the device.