Microsoft introduced Windows 11 in 2021 with a redesigned startup sound intended to sound calmer and less intrusive than earlier versions. The chime quickly became familiar to anyone installing or upgrading the system, and it spread through tech channels, setup videos, and short-form clips showing new computers booting for the first time. It remains widely used because it instantly identifies the operating system without needing any text on screen, making it a useful shorthand for modern PCs, fresh installations, and the familiar ritual of switching a computer on.