Microsoft released Windows Vista in 2007, and its logon sound played each time a user signed in to the system. The short chime was part of a quieter, more refined sound set designed for the new operating system, replacing the bolder startup audio of earlier versions. As Vista computers were replaced, the sound lived on in YouTube nostalgia videos, tech retrospectives and meme edits, where it now works as instant shorthand for the mid-2000s era of personal computing.