Learn how to create and start a custom slide show in Microsoft PowerPoint. A Custom slide shows only the slides you choose.

You can change the size of a slide in your PowerPoint presentation through the "Design" menu on the Windows PC, Apple MacOS, and web-based apps.

Learn how to use Microsoft PowerPoint in 2025 with this step-by-step guide. Create professional, engaging presentations with ease.

We’ll create this cool moving background effect using only a few objects in PowerPoint. How to insert a video in Microsoft PowerPoint We’ll begin by inserting a video onto a blank slide.