Movie Maker does not behave well for me. Slides run over each other and I lose slides and text. I decided to use my Movavi Video Editor. I have the paid version (about $30) but you can try it for free.
Video marketing has super advantages and it is about the only way to make an impression on the market. They are great for giving out information and for tutorials. It takes a few minutes to learn the ropes but it is worth it.
You will have more traffic if you use video. About 60 percent of searches are looking for a video. I use them all the time to stick needed information in my brain. I use them when I have a painting problem. I use them to learn the stuff I already know something about in review mode such as quantum mechanics and solid state physics and cosmology (universe origins, not makeup), etc.
Read six (6) good reasons for using video on this video, my first with Movavi.
You may want to run this full screen. The subtitles should have been larger.
John