The password for content advisor is
help in the registry, encrypted. Go to START>RUN and type 'regedit'
then press ENTER. Then, navigate to:
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Ratings
Once there, you should find a key in
the right hand window called 'Key'. You need to right-click on it and
then select 'Delete'. Then close 'Regedit' and restart the computer.
You should now be able to change/disable Content advisor.