If the message is "please check your Content Advisor for missing information", look here:
support.microsoft.com/default.aspx?scid=kb;EN-US;q242037
If you've forgotten the supervisor password, click on Start, Run and type "regedit" and click OK. This brings you to the Registry Editor, which looks a bit like Windows Explorer.
First, make a backup by clicking on Registry, Export. Name it backup and click ok.
Now, if you have forgotten the Content Advisor password, you can delete it by browsing to this folder in Regedit:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVer sion\Policies\Ratings
Select the icon called Key in the right-hand pane and press delete. Close Regedit.
You can now start Internet Explorer andgoto View, Internet Options.... Select the Content tab, and click on Disable. When asked for a password, don't enter anything, just click on OK. This will disable Content Advisor, since there's no longer a password.