To restore a deleted slide, open the presentation menu next to the name of your presentation in the top left of the editor, and click Show deleted slides.
💡 You can also view and restore deleted slides from the quick menu. Type Command + K (or Control + K on Windows) and start typing "deleted slides."
Preview all slides that have been deleted in this presentation or template. Each deleted slide indicates when it was deleted and by whom. Select the slide you'd like to retrieve and click Restore slide.
💡 When a deleted slide is restored, the comments on it will be restored too.