To delete a slide in PowerPoint, follow these steps: Open the PowerPoint presentation that contains the slide you want to delete. Click on the slide you want to delete in the sidebar on the left side of the screen. This will display the slide in the main window. Right-click on the slide and select 'Delete Slide' from the context menu. Alternatively, you can select the slide and then click the 'Delete' button on the Home tab in the ribbon. Confirm the deletion by clicking 'Yes' in the pop-up window. Alternatively, you can delete a slide by selecting it in the sidebar and then pressing the 'Delete' key on your keyboard. Note: If you delete a slide by accident, you can use the 'Undo' button on the Quick Access Toolbar to restore it. You can also use the 'Redo' button to redo a deleted slide if you change your mind and want to delete it again.