While the Windows Photo App isn't a full fledged video editor, it can produce a great personal video for sharing between family and friends. In fact, with the new Narration capability, you can overlay a voice narration on your video. In fact with the tweaks in this video, you can add multiple narrations and even overlay all of them with one or more music tracks.

Here's a previous video of mine that shows all the other 'advanced' editing features of the Photo App. Combined with this information, you'll be impressing (or bothering) your friends and family soon.