The log off sound belongs to the set of system sounds built into Microsoft Windows, played automatically when a user ended a session and signed out. Different Windows versions used slightly different chimes, with the Windows XP era version becoming the most widely remembered thanks to its use in homes, schools and offices throughout the 2000s. As clips and soundboards spread online, the chime moved beyond the desktop and became shorthand for logging out, switching off or leaving, long after newer Windows versions changed the default sounds.