The safest way to shut down a computer is to select the "shut down" option from the menu bar. This can be found in the start menu of a PC on the bottom left corner of the screen.
To turn a PC off from the start menu, click the start button and select "shut down," located in the lower-right corner of the menu. When a PC is shut down, all open programs are closed and Windows shuts off. The PC then turns off completely, including the display. It is important to save any work that is open before shutting down, or else these files may be lost.