Click the Template radio button in the PowerPoint window, then click OK.
Step3
Select either the Presentations or Presentation Designs tab.
Step4
Select one of the templates and preview it to see if you want to use it, then select OK.
Step5
Select the slide layout you want to use and design your presentation.
Tips & Warnings
A template is the background applied to all your slides, while the layout is the arrangement of objects on that background - title, bulleted lists, charts, pictures. Any layout can be applied to any template.
If you are already working in PowerPoint, go to the File menu and select New, then begin with step 3 above.
Select a layout for each new slide you add to the presentation; use the first layout you pick only for the first slide.
You can change the template applied to a presentation by opening the Format menu and choosing Apply Design Template, then selecting the template you want and clicking OK.