Windows Whistler was Microsoft's codename for the operating system released as Windows XP in 2001, and its logon sound was heard during test builds and the first-run setup process. Unlike the final XP startup sound, this version stayed mostly known through beta archives, installation videos, and system sound collections shared online. It remains popular with retro computing fans who compare prototype sounds to final releases, often alongside the classic Windows error sound in compilations exploring how the interface evolved before launch.
About this sound
The Windows Whistler logon and OOBE sound from the pre-release builds of Windows XP, a short startup chime used in nostalgia and retro PC videos.
This is the brief logon and out of box experience sound heard when signing into Windows Whistler, the development codename for what became Windows XP. It is a clean, synthesized chime with a soft rising tone that feels calm and futuristic for its era, very different from a loud error alert. Played on its own it instantly signals a computer starting up and a desktop getting ready to use. Viewers recognize it from old setup screens, and that familiarity creates a quiet nostalgic hit even for people who never ran the beta builds themselves.