Removing the Content Advisor Password in IExplorer

First close Internet Explorer and, if you wish, back-up the registry.
The password can be deleted from the registery at this location......
Go to Start->Run and type regedit and hit enter.
You'll see a window with two panes. Down the left will be a list of entries with plus signs (+) next to them. Click the plus sign in front of the "HKEY_LOCAL_MACHINE" entry. It will turn into a minus sign (-) and a sub-menu will open to reveal a list of further entries with more plus signs next to them.

Next click the plus sign in front of "SOFTWARE", then "Microsoft", and then "Windows", "Current Version", and finally "Policies".

In the "Policies" list click once on "Ratings". Look to the right pane of the registry editor. There should be two listings. One says "Default", the other says "Key". Select "Key" with your mouse and press the Delete key to remove it.

Leave "Default" and any other entries as is.
Close the Registry.
Start Internet Explorer and the pasword will be removed.