This is a solution article on how to remove courses so they will not get loaded for exams.

Go to Set up – Courses – look through your courses – if a course does not have an exam, make sure it says NO under the Exam column.  

If you notice one that says YES and it should not have an exam.

Row click so you can EDIT the course, looking at the Exam schedule please remove/blank out the Day, Period, and then uncheck the Exam, SAVE.