Are there elements that you want to use over and over again in your slide show design? The logo for your organization, for example, or a particular background image?
Maybe there's a font that you prefer for slide text, or a specific color scheme.
Save all these design preferences in a PowerPoint template. One application of the template, and the full design is in place for your entire show. The template is ready for you to apply to any other shows, too.
For details, read this page fully, and click Next to start the course.