Set up a presentation to start automatically
1. On the File menu, click Save As.
2. In the Save as type box, select PowerPoint show (.pps).
3. In the File name box, enter a file name, and then click Save .
4. To start the presentation, double-click the file name in Windows Explorer.
5. To advance through the presentation, click anywhere on the screen. To exit the presentation before it is finished, press ESC .