User Control - there is a pass word that no one remember on the computer where do I go to get the pass word?

is this the master account?User Control - there is a pass word that no one remember on the computer where do I go to get the pass word?
if it is NOT the admin password then you can change/delete it in safemode...........go into safemode/press the F8 key as comp boots up/login as admin go to control panel and change it from there