I am posting a simple tutorial here which will help you easily change the password of any XP user without knowing his/her old password.
How to Apply:
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View all of the user accounts:
1. While logged onto the computer, click on Start -> Run -> and type in "CMD"
2. From the command prompt window, type in "net users" (without quotes). This will show you every account that is made onto the computer whether it is hidden or not.
To change an account password:
1. Log into the computer that has administrative rights, click on Start -> Run -> and type in "CMD".
2. Type in "net user" then space than the name of the account than space then * and press enter.
Example: net user Administrator *
Put the name in quotes if it contains spaces eg: net user "Cool King" *
3. From there it should ask for a new password. Type in your new password and press enter (type very carefully and check your CAPS Lock because the command window won’t display what you type) and once more to confirm it. If you get the message that the command succeeded successfully you’ve changed the password.
That's it!!
Its my humble request plzz plzzz dont misuse it , its because of u should know all things