Learn why people trust wikiHow PRESENTATION SOFTWARE POWERPOINT PRESENTATIONS How to Unlock a Read Only PowerPoint Presentation (in 4 Steps) Co-authored by Darlene Antonelli, MA Last Updated: March 23, 2021 If you see text in a banner that warns you the file is read-only, the original author marked it as final and discourages editing. This wikiHow will teach you how to unlock a read-only PowerPoint manually. Otherwise, you can click Edit Anyway within the banner. Steps 1 Open the PowerPoint project. You can open PowerPoint from your Start menu or Applications folder, then open the project by going to File > Open . On the other hand, you can also right-click the file in either your file manager or Finder and select Open with > PowerPoint . 2 Click the File tab. You'll see this in the editing ribbon above the document space with Animations and Home . 3 Click Protect Presentation . You'll see this with an icon of a lock to the right of the Info ...