PowerPoint 2013 (and later versions) now uses Presenter View by default in Slide Show mode on dual-display computers (i.e.classroom projector setups with a lectern computer with a monitor and a projector). To turn off Presenter View, follow these steps before running the presentation in Slide Show mode.
- On the ribbon (top menu bar), select the SLIDE SHOW tab.
- In the Monitors group on the right, uncheck the box for "Use Presenter View".
- On the Monitor drop-down menu, change the selection from "Automatic" to "Primary".
- You can now show your presentation in Slide Show mode.
You may need to select these options every time you log in and open PowerPoint.