Windows 2000 was released by Microsoft in February 2000 as part of the Windows NT family, aimed largely at business and professional users. Its startup sound became familiar in offices, schools and homes during the early 2000s as computers became everyday tools. As those systems were replaced, clips of the chime resurfaced online in retrospectives, boot-up compilations and meme edits about old technology. It remains popular because it captures a specific moment when personal computing felt formal, optimistic and rapidly expanding, and a few seconds is enough to place a joke in that era.