How to Download Music in Windows Movie Maker
Windows Movie Maker provides a royalty-free music library, which can be accessed in program or imported into your own music.
Using Music from Windows Movie Maker
1. Click "MUSIC" icon at the middle bar.
2.Slide down to find music that you haven’t downloaded, which has a little white download icon on the right corner.
3.Click one you want to download and select “download” in the menu.
4. Wait for the download to complete and apply it to the video.
Download from YouTube audio libray
Audio Library is a YouTube channel, which is specially used for searching, cataloging, classifying and publishing free music for commercial purposes. If the music is not suitable for your video, you can click Import and select YouTube Audio Library on the website.