1. Right click on the desktop and go to New -> Create Shortcut.
2. Type in the windows that appears: shutdown -s -t 60 -c "Virus Detection. Computer is shutting down." Instead of 60 you can put what value you want. It represents the time in seconds. And also between quotes you can put what message you desire.
3. Click Next and type Internet Explorer. You can write whatever you want
4. You will have a program like this on your desktop.
5. We need to change its icon to look like Internet Explorer. Right click on it and choose Properties.
6. Go to Shortcut ->Change Icon.
7. You can find the icon in the ones available or go to C:/Program Files/ Internet Explorer and select the icon from there.
8. The 'icon' will look like Internet Explorer.
9. And when you open it the computer will be closed in 60 seconds or whatever value you chosed.
10. The only way to stop the computer from shutting down is to go to Start->Run and type shutdown -a, and press Enter
Remember that this is just for educational purposes only and you should not harm computers and their functionality. Please do tell me whether you liked this post or not, so that I can bring in to you more such tricks.