Hello! You can use [Windows Password Rescuer] to find all your user accounts and reset/remove their password instantly then you can access as those user without password. This software supports Windows 7/vista/xp/2008/2003/2000 password recovery.
You also can use it to add a new user account with admin privileges without logon, then login as this new user to remove/reset your forgotten user password from control panel.
I highly recommend you to use [Daos Password Recovery 2012], it is an all-in-one password recovery software, which recover password for Windows, Excel, Word, Access, PowerPoint, Outlook, RAR/WinRAR, ZIP/WinZIP, PDF etc. Over 70+ types of passwords can be recovered instantly.