1. Go to the course you have created, here is Demo course. Then click Desktops category, choose "Create From Standalone Desktop" to Fresh-start.
  2. Choose the "standalone desktop" you have finished with course environment(software, course material, quiz etc.)
  3. You can change the size of Memory, CPU and increase your disk size in this procedure.  Click "Create Desktop".
  4.  Now Fresh-start is ready. Both trainer and participants can clone desktops from it. IF you want to change something before clone to participants, click unlock to make some changes. 

    Fresh-start is a desktop in the course that allow clone to all participants and trainer in one time. Everyone in the course can restore form fresh-start.