Windows Vista was Microsoft's operating system released to the public in January 2007, succeeding Windows XP with a new Aero interface and a refreshed set of system sounds. Its log on chime was part of that softer, more ambient audio identity, heard each time a user signed in. As Vista machines disappeared, the sound survived online in nostalgia compilations, tech retrospectives and meme edits. It is now used less as a real system alert and more as a shorthand for that era of computing, instantly recognisable to anyone who used a Vista PC.