To set up automatic slideshow playback in PowerPoint, follow these steps:
1. Open your PowerPoint presentation.
2. Go to the "Slide Show" tab on the ribbon.
3. Click on the "Set Up Slide Show" option.
4. In the Set Up Show dialog box, check the box next to "Use Timings, if present."
5. If you want the slides to advance automatically after a certain amount of time, enter the desired time in the "Advance slides" section.
6. Click on the "OK" button to save your settings.
Your slideshow will now play automatically with the timings you have set.
