PowerPoint enables you to change many basic options, such as how you edit, save, or print your presentations, as well as how you view PowerPoint screens.
Changes you make in the Options dialog box become your new default settings until you change them again.
Whenever you use a new program or an update to a program, your first inclination is to try to make the program do things the “old way” or the way you're used to doing them. Although it can be tempting to jump right in and make changes to PowerPoint's default settings, you probably should use PowerPoint “as is” for a while, at least, until you decide whether those default settings might actually be better.
To access the Options dialog box, choose ...