Microsoft released Windows 7 in 2009, and its short startup chime quickly became one of the most familiar sounds in personal computing, heard by millions of people every time they switched on a home or school computer. As Windows 7 remained widely used for years, the sound became closely linked with that era of desktop computing. Later, clips of it spread through YouTube nostalgia videos, retro tech channels, and memes, where it now works as instant shorthand for the late 2000s and early 2010s.