Faster Shutdown Using Command Line

Command: shutdown -f -t 0

Execute this line either by using the Run dialog in windows (Windows Key+R or Start-->Run)
or by using the command prompt.

-f stands for forced
-t stands for time

Other shortcut commands:
shutdown.exe -s -t 0
Shuts down the computer as if you clicked start--->stop--->shutdown

shutdown.exe -r -t 0
Restarts the computer as if you clicked start--->stop--->restart