Open Windows Password with USB disk Ubuntu

Source

1
Prepare the USB disk : UNetbootin
Running the execute file and select one of Ubuntu ISO file

2
Install 3rd party, chntpw
When running Ubuntu, run Synaptic Package Manager
Select Universe Application. Menu Settings > Repositories on Synaptic Window. Check on “Community-maintained Open Source Software (universe)”
Reload Synaptic, and search chntpw on Quick Search.

3
Mount harddisk of your windows
Check the drive label
Open terminal. (Applications > Accessories > Terminal)
execute :
cd /media
ls
cd [your harddisk label]
cd WINDOWS/system32/config
to change Admin password :
sudo chntpw SAM
to change other users :
sudo chntpw -u [username] SAM