Record your presentation and audio in Microsoft PowerPoint
Did you know that in PowerPoint 2013 and 2016, you can record your screen activity and audio?
Find it on the Insert ribbon tab, click Screen Recording and select the area you want to record. To stop the recording, be sure to remember the rather obscure keyboard combination of Windows, Shift, Q, and that will finish recording. Once the recording is stopped, it will appear on your PowerPoint presentation, right click to save the media file if you need to use it outside of PowerPoint.