Change password with know previous password!

By this way you can change your Friend computer Password.

At first click,

1. start-->All Programs > Accessories > Command Prompt

OR

2. Windows key + R--> cmd--> Enter

3. Then write with commend promote, C:\> net user username newpasswor --> Enter

Suppose Your friend's PC user name "Murad". You want to change password by name "Sohel".

4. So write, net user Murad Sohel

5. Close commend promote. After then you asked your friend, actually now he can change his password correctly or not.