On Windows 2003 Operating System, Security Report shows Critical message for "Registered user role" and for "Site default course role":

Security report claims 'Incorrectly defined default user role "Authenticated user" detected!' - but on User Policies the Default role for all users is Authenticated users and the Authenticated user has default capabilities.

Security report claims 'Incorrectly defined default course role "Student" detected! - but on User Policies the Default role for user in a course is Student and the Student role has default capabilities.