If you want to Scare your friends by inserting a notepad virus then you are at right place. Solution Exist is posting a method to create a error message and shutdown your friend computer. All you need to to create a simple .bat file with the codes shown on this post of Solution Exist and give it to your friend. You would also like to read some notepad tricks by solution Exist. Now stop waiting and start reading the steps given below.
Steps to Show a error message and shut down friends computer
msg * I don't like you
shutdown -c "Error! You are too stupid!" -s
2. You can change the message by replacing the text by your message. Save it as abc.bat.
4. Done..!! This will show an error message and Shutdown you friends computer