Method 1 – Shut down /Restart Windows 10 by using the Start Menu

Method 2 – Shut down/Restart Windows 10 by using the WinX menu

Method 3 – Shut down/Restart Windows 10 by using by Using Command-Line

Method 1 – Shut down /Restart Windows 10 by using the Start Menu

Go To Start Menu 
Then by clicking the Windows button on the bottom left corner of the screen.
Then, click on Power button.
From the options choose Restart to reboot the device or Shut down to shut it down completely.

Method 2 – Shut down/Restart Windows 10 by using the WinX menu

Press the Windows + X keys on your keyboard
On the WinX menu, press “Shut down or sign out” to access Shut down or Restart.

Method 3 – Shut down/Restart Windows 10 by using by Using Command-Line

Start->Run->CMD
Type “shutdown /s” and press enter to Shutdown  computer
Type “shutdown /r “and press enter to Restart computer