You can use hyperlinks in PowerPoint to link to websites and other slides and the PowerPoint action button to link to other slides.
In PowerPoint, you can also use hyperlinks to link to resources that are not online. To create a quick way to refer to another slide in your presentation, you can create a hyperlink to that slide. You can even create hyperlinks to files stored on your computer.
If you plan on displaying your presentation on a different computer than you used to create it, your hyperlink to another file may not work. Make sure you have a copy of the linked file on the computer you are using to present, and always test hyperlinks before giving a presentation.