there are allot of programs out there on the net that can be used to recover pass words. i cant think of any off the top of my head, but if you get one you could try booting up and running it in safe mode. get one that doesn't need to be installed but just runs from its own file. it should allow you to run it even without admin rights because it doesn't write to the registry. just be sure to shut off any anti virus programs that you are running, even when booting in safe mode most anti virus programs will start up so remember to shut them off.
good luck
