Longhorn was the development codename for what became Windows Vista, and its leaked builds inspired a small cottage industry of fan-made startup sounds and fake boot animations online. This particular clip circulated under a misleading title, as the uploader themselves noted, and its embedded metadata even credits the artist as Not Microsoft, a wink that it was never an official jingle. Rather than fading away, the fake found a second life in memes, where its convincing chime is used to bait viewers into thinking they are hearing a lost piece of Windows history. It endures because the boot-sound format is so deeply wired into millennial nostalgia.