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Windows Longhorn was Microsoft's codename for the operating system that eventually became Windows Vista, and its early test builds carried their own set of logon and logoff sounds. The logoff sound circulated among Windows enthusiasts who collected builds, rips and startup sounds from that unfinished era, long after Longhorn itself was replaced. It survives online because that period has become a focus of retro computing nostalgia, with creators reusing its sounds to signal old PCs, early 2000s interfaces and the look and feel of a Windows that never quite shipped as planned.
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This is the Windows Longhorn logoff sound, the short shutdown chime from Microsoft's unreleased Vista-era builds. It is used in retro tech videos and memes.
The Windows Longhorn logoff sound is a brief, gentle system chime that plays as the old test builds of Windows sign a user out. It opens with a soft, rising tone and settles into a calm, rounded melody, with the clean, slightly futuristic polish Microsoft gave its mid-2000s interface sounds. It lasts only a few seconds, but the familiar Windows cadence makes it instantly recognisable to anyone who grew up with PCs from that era. Hearing it creates a small wave of nostalgia, like closing down a computer at the end of the day, and it can make a modern edit feel suddenly older, quieter and strangely comforting.
