How to Change a Computer Password Using Command Prompt

A command prompt is a command you issue to your computer using a built-in program. To change a computer password using Microsoft Command Prompt, follow these instructions. 1. Open command prompt: To do this just click or press the windows start button on your PC and type in command prompt...then click the command prompt icon when it shows or hold the windows start button and press R to open the windows run menu then type in cmd to open command prompt 2.To change a user's password at the command prompt, log on as an administrator and type: net user user_name * /domain When you are prompted to type a password for the user, type the new password, not the existing password. After you type the new password, the system prompts you to retype the password to confirm. The password is now changed.

Alternatively, you can type the following command: net user user_name new_password When you do so, the password changes without prompting you again. This command also enables you to change passwords in a batch file.

Non-administrators receive a "System error 5 has occurred. Access is denied" error message when they attempt to change the password

Steps

1. 
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   Reboot the computer
2. 
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   Right after the bios is finished, hit F8 (or F2,F10,F12)
3. 
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   Select 'Safe mode' or 'Safe mode with networking support'
4. 
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   Windows will boot up to the login screen. Click administrator, 9/10 there is no password.
5. 
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   Open Command Prompt. You can go to Start > Run and type cmd.exe or simply search for cmd using the Windows search function.
6. 
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   Type net user and press Enter. This will bring up a list of user accounts. Look here for the name and exact spelling of the account whose password you wish to change.
7. 
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   Type net user name goes here *. Do not neglect any of the spaces (particularly the one before the *) or the command won’t work.
8. 
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   Press Enter. Once submitted, the command will give you the option of typing a new password for the user.
9. 
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   Carefully type the desired password and press Enter. The characters will not display as you type, so make sure the Caps Lock isn’t on and be very thorough with the spelling and punctuation.
10. 
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    Retype the password to confirm. This should weed out any typos.
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    Press Enter. The new password should go into effect immediately. If you get an error message or your access is denied, the account you’re working on doesn’t have high enough authorization to change any passwords. See Tips for possible solutions.