Reddit user u/ExoGeniVI found a way to transform Windows 11 into Windows 2000, complete with old games, applications, and Clippy. And with a bit of work, you can do something similar to your desktop
This isn’t a hack or a virtual machine—u/ExoGeniVI is using StarDock WindowBlinds to customize the theming in Windows 11
https://www.reddit.com/r/windows/comments/11fhssn/windows_11_classic_theme_oh_and_i_also_installed/
You can achieve a simplified version of u/ExoGeniVI’s retro desktop using StarDock WindowsBlinds and prozad94’s Windows 2000 skin. That said, a more authentic Windows 2000 experience requires a lot of work—you’ll need to play with some elements in StarDock and Windows
(I don’t suggest doing this on your primary desktop, as you might break something)