How to Change The Computer Administrator Or User Password Using Command Prompt

A built in dos command "Net user" to change any desired user account password in just seconds.
You will need access to command prompt window in this method :-
1- Open command prompt as administrator and following command

    NET USER

2- It will list all available user account in windows.

3- Then type  NET USER_NAME NEW_PASSWORD
     Replace NET USER_NAME with the user account name you want to change the password          
     Replace NEW_PASSWORD with the new password

For Example:- NET USER VIBHANSHU 123445

4- Now you are done type EXIT command and enter