How to ‘turn off’ a course so that it does not appear in the course catalogue and is not available to students
As an instructor you can change make a course site unavailable to students but still visible to instructors and teaching assistants. Choose CONTROL PANEL > (Course Options) SETTINGS > COURSE AVAILABILITY. Choose ‘no’ to make the course unavailable to users (i.e. students). This is a good way to ‘hide’ your course while you make updates to it, or to keep an old course site available for QA purposes if it has been replaced with a newer version. To make the course available again, just repeat the procedure, this time selecting ‘yes’ instead of ‘no’.