Windows XP launched in 2001 and its short orchestral startup chime became one of the most recognizable sounds in computing. As XP machines aged into nostalgia, the clip spread across YouTube and TikTok as shorthand for the early-2000s internet era, popping up in throwback compilations, fake error-screen memes and retro tech jokes. Today it remains a beloved go-to cue for creators signalling nostalgia or a fresh boot into something old-school.