To change the background of your PowerPoint slides to one of the four available options, start by right-clicking a slide or going to the "Design" tab in the top menu bar.

Launch Microsoft PowerPoint, and open the PPTX file for which you want to use a GIF as the background. Select the appropriate slide. Click the "Design" tab, and locate the "Background" section.

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.