Learn...

Resetting windows password using Ubuntu Live CD or DVD

REQUIREMENTS:
For this hack you will require the Ubuntu Live CD or Knoppix or BACKTRACK and CD or DVD drive in the victim's PC whom admin or administrator account you want to hack.

Steps to Hack or reset the Windows administrator password:

Insert Ubuntu Live CD and boot from it.
Open terminal and install chntpw in Ubuntu. To do so use the following commands.
sudo apt-get update
sudo apt-get install chntpw

"It is included in many security focused Linux distributions such as BackTrack and Knoppix STD.So no need to download chntpw for Knoppix or Backtrack"

Now mount your Windows volume. In my case it was dev/sda1. Replace it with yours.
sudo mkdir /media/WINDOWS
sudo mount /dev/sda1 /media/WINDOWS
Now navigate to the Windows configuration folder.
cd /media/WINDOWS/WINDOWS/system32/config/
To reset the administrator password enter
sudo chntpw SAM
After completing this command you will see 5 different choices. Select the 1st one and press Enter and its done.
Now restart your system, it will not ask any password.

Hope it will be useful....Enjoy friends....