How do I unenroll a learner from a course?

To unenroll a user, navigate to the course's Users & Groups tab, find the user you want to unenroll, then click on the X beside their name. 

If the user is enrolled in the course via a Group or Learning Path, you will be notified and asked whether you want to unenroll them from those as well. If you decline, the user will not be unenrolled.