Windows Live Movie Maker is the successor to Windows Movie Maker which originally came bundled free with Windows XP. Remaining free, this program still has the features of its predecessor, but has a new interface, new options and is far more simple. It comes bundled as part of the 'Windows Live Essentials' pack of products along with Live Photo Gallery, Live Messenger, and other free products from Microsoft.
As a free product, it doesn't include many advanced features that rival third-party products such as Premiere Elements but that shouldn't pose an issue as it's a freebie. When using it I felt it performed well, though rendering wasn't very fast.
It also sports features like 1080p export, direct YouTube upload and plenty of titles and visual effects. Creating a movie is as easy as dragging clips into the window. Adding background music can be done in the same way, or you can browse for it. Reordering clips is done by dragging and dropping. You can also set clip volume to background music ratio with ease.