Change password at command prompt in windows
To chane a user's password in windows at the command prompt run cmd as administrator.step-1: click on start button
step-2: search cmd
step-3: right click on cmd and run as Administrator.
step-4: type at cmd- net user user_name *
Type the new password, not the existing password. After you type the new Password, the system say you to retype the password to confirm. The password is now changed.