Windows 2000, released by Microsoft in 2000, included a set of system sounds for starting up, logging in and shutting down, and this short closing melody was the one users heard when they switched their computers off. As those machines were replaced, the sound survived through nostalgia videos, retro computing channels and online soundboards, where it became shorthand for the early 2000s office and home computer era. It remains popular because it is instantly recognisable to anyone who used Windows at the time, yet short and gentle enough to reuse as an ending cue.