>> First, right click on your Desktop and select New and then Shortcut.
>> In the location box type in
shutdown -s -t 0 optionally you can add -f to force the shutdown. Then click next.
>> Type in a name for your shortcut and click Finish.
>> Now let’s customize icon for the shortcut. Right click on the new shortcut on your Desktop and select Properties. Click the Change Icon… button on the Shortcut tab. Select a new icon in the browser and click OK.
>> Your new icon will be displayed on the shortcut properties window. Click OK to finish.
>> Finally, let’s pin your new shortcut to the Start Screen. Right click on your shortcut and select Pin to Start. A tile for the shortcut will be created and added to the far right side of your Start Screen.