1. Click on the "Slide Show" tab then click on the "Record Slide Show"
  2. Check the "Play Narrations box" and leave the rest of the boxes unchecked.
    Record Slide Show button with Play Narration checked
  3. Click "Record Slide Show". You can hit the "Pause" button or "Escape" on your keyboard if you need to. Click "Resume" to continue.
  4. When done recording, click “End Show.” When asked if you want to save slide timings. Click “Yes.” 
    End Show button
  5. Set up Slide Show, click “Manually” for advancing slides.
    Advance Slides options with Manually selected
  6. Click “Play from Start” to begin slide show.