How to break Windows password using Ubuntu?

How to break Windows password using Ubuntu?

1. Boot machine with Ubuntu and run as live.

2. Open Terminal, set root password and switch user as root in terminal.

3. Install chntpw graphically or by using command

         #apt-get install chntpw

                      or

          #apt install chntpw

4. Create a directory with any name.

          #mkdir /abc

5. Mount C drive to abc directory.

           #ntfs-3g mount /dev/sda1 /abc -o force

6. locate sam file

           #cd /abc/Windows/System32/config

7. use command:

           #chntpw -l                   //to list users

           #chntpw -u administrator sam

and select 1,2,3,4 options as required.

Do comment if any error occurs.

 to try different way follow link : Method 1 and Method 2