CHANGE ADMINISTRATOR password

Change Even administrater's password.
This works if you want to hack someone else's account on your pc bit do not know his/her password.
Click on START-->RUN.
Type compmgmt.msc & press enter.
In the left pane, select COMPUTER MANAGEMENT--> SYSTEM TOOLS--> LOCAL USERS AND GROUPS--> USERS.
Then in the right pane, select the user name whose account you want to hack.
RIGHT CLICK and then click on SET PASSWORD from the pop-up menu.
Enter the new password.
Click on OK.
There you have it.
You have changed the user's password!

SECOND METHOD
there are several methods available to change administrators passwords, but i am not going to discus any third party tool here (i don't want to publicize any commercial tool here)...
in command console or run dialogue box, type:

net user administrator

and thats it it is changed, but how to change it if u are not aDMIN,...THATS THE RECIPIE OF QUESTION?

there are several ways, if you anytime found computer unattended, then make an password reset disk by selecting the administrator user from user management from control panel "prevent typing wrong passwords" and then insert a floppy disk, next time any time reboot system and intentionally type wrong passworde aND WHEN asked insert the password reset disk and u can change the password for administrator.

and the RAMBan OF ALL THE HACKS IS THAT , INSERT A WINDOWS INSTALLATION DISK AND REBOOT THE SYSTEM AND SELECT the listed installation and select the REPAIR (not recovery console..NO..NOT)
remember the repair, and then when it will again reboot and the repairing process will start (showing the "installing devices" progress bar) press the SHIFT+F10 and there u will get the command console, now type taskmgr immegiately and endtask (terminate or keep on, it will then refresh the window) the setup.exe and then in console window type in the above listed command to change the users password, u can change any user's password by eliminating administrator with user id, and there u go.

u can also use knoppix if want to retrieve the data or there are several password changers available...but dont use them,..all in alll....secure systems physically also, don't prey upon other's intellectual property.
it is offensive and a criminal act....beware

and once more, there are certainly other methods also. sometimes the administrators password can be retrieved from registry backups in plain text if the autologon is enabled....