Movie Maker is no longer supported by Microsoft. It has been replaced by Windows Photo editor, which includes a video option. School computers also have a Microsoft Video editing app.
To access:
In search box at bottom of desktop, search for VIDEO EDITOR and click on the "Video Editor app"
Click to create a new video project
Import photos and/or videos
Add background music
Add transitions
And more!
When finished, click on FINISH PROJECT
SAVE the project to your H drive
You can upload and share the finalized video project (MP4) to Google drive
General Directions from Microsoft and Tips to using the software:
https://support.microsoft.com/en-us/help/17205/windows-10-create-videos
https://www.microsoft.com/en-us/windows/photo-movie-editor
Google Site with step by step directions on how to edit videos in Windows Photos