How to change Administrator Password without knowing Old Password

How To Change The Administrator Password Without Old Password ?

Friends, today i m sharing with u a very important trick which will help u so much. When u go to your frnds house and u want to tease him so do this trick. U can Also do it with your Colleg's or school computers.

Steps:

 1.Go to Start and click RUN.
 2. Type compmgmt.msc

3. Click on Local Users and Groups

4. Click on Users.
5. Right click the Administrator and choose Set Password.

6. Now select Your New Password and click OK

Note:
This trick works in Windows 7 Ultimate, Windows XP  only