(Before you reset) You will need to make sure that you back up the information that you have within your course before you reset. When you back up the course make sure that you back it up with the user information. That way you will have a back up data on the ones that have taken your course before you reset it for another group or department. 

How to Reset - step by step
  1. Log in and go to the course you want to reset
  2. From Course navigation > More > Course reuse, select Reset.
  3. Click any Show Advanced button to show all options for that category.
  4. Make your selections based on the options (see below for more on these)
  5. Click the Reset button
  6. Return to your area and check that things are as you want them.

**** Resetting a given activity/course is irreversible, so ensure that you have taken a Backup of your area including the user data - this is a snapshot and can be reinstated if necessary.**