An administrator password in Windows 7 is the password to any account that's setup to access administrator level functions in Windows 7.
There is also an account called "Administrator" but it's disabled in Windows 7 by default. What you really need in most cases is the password to any account that can act as an administrator.
There are a few times when you will need this password. You may need an administrator password in Windows 7 if you're trying to run certain types of programs or access certain Windows 7 recovery tools.
Follow the steps below to quickly find an administrator password in Windows 7:
1. use dos to copy cmd.exe to osk.exe, whitch is in windows/system32 dir
2. run osk.exe from "easy of acess"
3. now, cmd.exe is opened as system level, you can add an administrator account use conmand.
####osk.exe is " don't use keyboard input".