Try this below, if it is too confusing, try this link here
Windows 8 notoriously lacks a Start button, so obviously the old rules don’t apply here. More on that in a moment; in the meantime, here’s how to shut down Windows 8:
1. Mouse over the little gadget in the lower right corner of the screen. (You can also move your mouse cursor to the upper left corner; same result. Or, you can press Windows-C on your keyboard.)
2. In the slide-out menu (known as the Charms Bar) that appears, click Settings.
3. Click the Power button, and then click your desired action: Sleep, Shut down, or Update and restart.
So, there you have it. In Windows 8, it requires four actions to shut down your PC: hover, click, click, and click.