 Reset function is a very powerful way to strip away user data that may be associated with activities in your course. Bear in mind that it's unlike the backup and restore process where you essentially copying or cloning an existing course into another one. To perform a course reset, logged in the course as a teacher, go to the settings block, course administration, reset. So you essentially choose all of the items that you wish to strip away from the course. This is the bearing in mind is the user associated data. So it could be, for example, events, logs, notes, comments, course completion, block associations. You may wish to also unenroll your students, local role assignments, assignment submissions, chat messages, database entries, forum posts, and so forth. So it will retain the activities that were created by the teacher but not the student or the user data that's associated with those activities. So you're stripping away, I guess, all of those particular elements. Some activity modules may in fact not be supported by the reset function. Just bear in mind once you reset the course, what you've just done is irrevocable. You can't get the data back. There we have it. So the course has been reset. The activity modules are essentially still there but the associated student data has been removed.