Windows 7 Media Center was Microsoft's living-room media hub, included with Windows 7 when the operating system launched in 2009, letting users browse music, photos, videos and recorded TV from a remote-friendly interface. Its startup sound became familiar to anyone who used a home theatre PC in that era, and as Windows 7 aged out of everyday use, the chime survived in online nostalgia clips, retro computing videos and meme edits. It endures because it instantly evokes a specific mid-2000s to early-2010s desktop era without needing any explanation.