The Charm bar is a completely new feature to Windows 8, so you may not know how to find it or how to use it. This menu of useful tools is located on the right side of the screen and can be accessed at any time. Opening the Charm bar also brings up the date, time, wireless signal, and battery indicator.
To access the Charm bar, you'll simply need to swipe from the right edge of the display on a touchscreen. You can also press the Windows key and the C key at the same time on your keyboard, or move the mouse cursor to the top-right or bottom-right corners of the screen.