Hekmat
There are a couple of websites where there is information on how to
accomplish this, but they are not for the faint of heart. The best method I
have found is the following software. You can install the product on any
computer, create a boot CD, DVD, floppy disk, or USB stick and then take
that boot disk to your PC and run it. When you boot from the disk, it has
very easy instructions to find and remove the password on any account on the
system.
A@PC: Windows Password Recovery Software. Reset Administrator Password. XP
VISTA 2003 2000 NT:
http://www.password-changer.com/