This is one of those things you just have to hear to believe: a YouTube user going by username of "SomethingUnreal" put together a mix of Windows sounds to actually make some pretty decent music. The sounds used were taken from Windows 98 and Windows XP and are mostly what I would call the annoying "blips and beeps" you hear when an error occurs or Windows is giving you some other type of feedback. But the music itself isn't annoying at all...it's kind of catchy. You can watch the video here. There's a high-quality version and an extended version of the song available for download from that link, too.