How to reset your windows password using command prompt
USUALLY WE NEED THE OLD PASSWORD TO CHANGE THE PASSWORD. USING THIS TRICK , YOU CAN SIMPLY CHANGE THE PASSWORD OF THE VICTIM'S COMPUTER (IF IT IS LOGGED ON) WITHOUT EVEN KNOWING HIS/HER OLD PASSWORD
Click on start -> Run-> cmd
In cmd prompt type "net users " and hit enter.
net users command displays the user name of an adminstrator.
Now the system will show you a list of user accounts on the computer. Say for example you need to reset the password of the account by name binod, then do as follows
Type net user binod * and hit Enter. Now the system will ask you to enter the new password for the account. That’s it. Now you have successfully reset the password for Rahul without knowing his old password.
Another way of reseting password.
Click Start, and then click Run.
Type control userpasswords2, and then click OK.
On the Users tab, click the name of the user account that you want to reset the password for, and then click Reset Password.
Type a new password in the “new password” box, and then type the password again in the Confirm new password box, and then click OK.
Restart the computer, and then try to log on to Windows again.