You’ll probably go back into your slide presentation many times to add, delete, or tweak a few elements until you’re satisfied that your show is ready for prime time. PowerPoint provides two extremely helpful organizational tools that make editing and modify your presentation a breeze: the Outline view and the Slide Sorter.
In Normal view, with your presentation open, click the Outline tab.
Select any text you want to change, and type the new text. Select and delete an entire entry if you want to remove it from the slide.
Click at the left of an item to select it, and, using the four-headed-arrow mouse pointer, drag the item to a new location on the slide, to a new location on a different slide, or to the left or right to promote or demote the item in a list.
Continue through the text and the slides to modify the content as desired.
"Using Word to Prepare PowerPoint Text" for information about creating and editing the content of a PowerPoint presentation in Word.
Click the Slide Sorter View button to switch to Slide Sorter view.
Drag a slide that you want to display in a different part of your slide presentation to the spot where you want it.
If there’s a slide that you don’t want to include in this presentation but that you don’t want to delete, select it, and, on the Slide Show tab, click the Hide Slide button. To return the hidden slide to the presentation, select it, and click the Hide Slide button again.
To permanently delete a slide, select it, and press the Delete key.
To add a blank slide, click the slide that will precede the new slide in the presentation, and, on the Home tab, click the New Slide button.