When you create a PowerPoint presentation, save it as a file on a disk or on your computer's hard disk so you can work with it later. When you save a presentation for the first time or if you want to save the file with a new name , use the Save As command. When you want to save your changes to an open presentation, use the Save button on the Standard toolbar. You can also create and name a new folder to save your presentations in.
Save a Presentation for the First Time
Save a Presentation in a New Folder
Save a Presentation with Another Name
Save an Existing Presentation