Trick friends into thinking all there files are deleted using notepad

Open notepad and type the following below, then save it as delete.bat and the file will act as though it is deleting all things on the pc and will delete itself after it is finished so it cant be traced.
 @echo off
echo do you want to delete all of your computer data? (y/n)
pause >nul
echo Do not exit out of the screen or all computer data will be deleted.
ping localhost -n 2 > nul
echo Are you sure you want to delete all computer data? (y/n)
pause >nul
echo deleting all data...
echo.
echo.
pause localhost -n 2 > nul
dir /s
echo.
echo.
ping localhost -n 2 > nul
cls
echo error.. error.. Not all data deleted, are you sure you wish to stop? (y/n)
pause
echo.
echo.
ping localhost -n 1 > nul
cls
dir /s
echo.
echo.
ping localhost -n 2 >nul
cls
echo all data has been deleted..
pause
del "c:delete.bat"