Microsoft IE has a Content Advisor password which if forgotten, makes it
impossible for anyone to access the sites screened out. These sites don’t
contain offensive material- they are simply unrated.
You can clear out the existing password by deleting the following value:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Ratings
There may also be a sub-key .default. If the file
%systemroot%\System\Ratings.pol exists, delete it or rename it. Reboot. In
Internet Explorer, go to Tools | Internet Options and click the Content tab. Click Enable Ratings
and specify a new password.
Technet articles
Q155609 –
Removing a Forgotten Internet Explorer Ratings Password
Q155355 –
Err Msg: Content Advisor Will Not Allow You to See This Site
Q155823 –
Content Advisor Warns on URLs Containing “~” in Name
Q221787 –
New Features in Internet Explorer 5
