There are many way for you to convert your PowerPoint to video
I often use these two methods:
1. You can input your pictures into Windows Movie Maker. Insert some background music then you can make a video.
2. If you are good at PowerPoint, You can add animations and sounds in your PowerPoint, you can also add some review in your picture, that is wonderful.
Then you should convert your PowerPoint to video.
But how to convert it to video?
A, use PPT to Video. https://ppt-to-dvd.com/ppt-to-video-overview.html. Import your PowerPoint presentation in it then output the video. The format include to MPEG, AVI, MP4, WMV, MOV, 3GP
B, use PPT to YouTube https://ppt-to-dvd.com/powerpoint-to-youtube-overview.html with this convertor, you can upload your PowerPoint presentation to YouTube.
C, use PPT2DVD https://ppt-to-dvd.com/ppt2dvd/overview.html
This converter can convert the PowerPoint and then you can view your Presentation on DVD!