The actual wallpaper was created by its design director Bradley G Munkowitz, also known as "GMUNK", using lasers, smoke machines and more. The result is one of the coolest looking desktop background we have seen in a while. Microsoft decided to take videos of how the wallpaper was created and then set it to music from Seattle-based electronic music duo Odesza.
What does this have to do with Windows 10's features and upgrades? Well, nothing really. It's just a cool video that's made to promote the OS. so just watch and enjoy.
Source: Windows (YouTube)