When you’re delivering your presentation, you may want to play a video automatically when a specific slide appears.
In Normal view, click the video in your slide.
Under Video Tools, click the Playback tab.
Next to Start, click the down arrow, and click Automatically.
When you are delivering your presentation in Slide Show View or Presenter View, the video will play automatically when you arrive at the slide.
If your slide doesn’t have a video in it yet, you can add one. Go to Add and play a video in a presentation for more information.
Important: Certain older video file formats may not compress or export properly in Office on a Windows RT PC. Instead, use modern media formats such as H.264 and Advanced Audio Coding (AAC), which PowerPoint 2013 RT supports. Want to know what version of Office you’re using?