Microsoft released Windows 7 in 2009, and its short startup chime quickly became one of the most recognisable sounds from personal computing in that era. As Windows 7 machines filled homes, schools and offices, the melody became shorthand for booting up a computer. Years after support ended, the sound kept circulating in nostalgia videos, tech retrospectives and meme edits, with louder remixes exaggerating its impact for comedy. It endures because it instantly signals an older, familiar era of computing without needing any explanation.