How to shut down your computer Windows 10

For Windows 10	Select Start and then select Power > Shut down.
For Windows 8.1 / Windows RT 8.1	Move your mouse to the lower left-hand corner of the screen and right-click the Start button or press Windows logo key + X on your keyboard. Tap or click Shut down or sign out and choose Shut down.
For Windows 7	Click the Start button and then click the Shut down button.