If you are encountering the issue that causes Pictures to not show up on your powerpoint presentation, please follow the steps below to fix the problem.
1. Below is the error message you will see:
2. Open the original File from your computer's hard drive using Microsoft Powerpoint.
3. Go to File -->Save As
4. Change the file type to .pptx (see picture)
5. Press Save
6. Drag the newly saved .pptx version of the file into your drive and open it. It should now display the pictures.