Type shutdown -s -t 500 -c “I am tired. I don’t want to work anymore.” (with the quotes) in the Command Prompt and press Enter. The -c switch is used in the code to give the reason for shutting down and what is followed in quotes will be displayed in the dialog box as the reason. This can be used to display all sorts of funny messages. One example :-
Skynet has become self aware. John Connor did not stop me. You can not use your PC anymore.