In this tutorial I will show you how to create a shutdown program. First goto your desktop and right click. Add a new shortcut. Then in the text box type:
shutdown -s -t 100 -c "Haha, Pranked ya! Your computer is going to shutdown in 100 seconds" . Then click next and save it as what you want and then you have a shutdown virus. If you open it a box will popup saying that your computer will shutdown. It's impossible to take it down, since the X button is blocked. You can try control alt delete. But that won't work. The only way to get rid of this is opening run and saying shutdown -a . If you are going to send it to your friends you might want to change what it looks like. So right click on it, and click change icon. Then change the icon until it satisfies you!