In this short beginners PowerPoint 2013 and PowerPoint 2010 tutorial, we will see the steps to disable advance slide on mouse click. During a slide show, you can move to next slide either by pressing ENTER or SPACEBAR on keyboard or on mouse click. And using Transitions menu, you can disable or enable the advance slide on mouse click.
Click the Transitions menu and navigate to Timing section
If you want to disable the feature, then un mark the check box labelled as On Mouse Click.
Also See: Start PowerPoint Slide Show using Windows Explorer