Whenever you try out an extension; it usually ends after 30 days or something like that and then a warning is received that displays to run ArcMap Advanced Settings. I usually have to search for .exe. It would be helpful if a menu item was added to to the tools menu to run this or possibly add a link in the message box to open ArcMap Advanced Settings.
Even better: let the message box display; Warnings are on. Would you like to turn them off?