There are currently 4 ways to run your PowerPoint Presentation full screen in Presentation Mode.
- Before Opening PowerPoint: Right click on your presentation file and select Show in the menu that appears. This will launch your presentation from the beginning.
- Press F5 on your keyboard when in PowerPoint to launch your Presentation from the beginning.
- Go to the Slide Show tab in the ribbon and under Start Slide Show select either From Beginning or From Current Slide.
- Press the button in the bottom right to launch your Presentation from the beginning.