Check the box “Play Narrations” and “Use Timings“.
Select “Record Slide Show” the a pop-up window “Record Slide Show” appears.
4. Recording your presentation. 5. After recording, go to “File” tab in PowerPoint. 6. Select “Export” and then “Create a Video“ 7. Select “HD (720p)” for video quality and “Use Recored Timings and Narrations“ 8. Start “Create Video” and save the file as MPEG-4 (*.mp4)