Windows 13 Simulator [exclusive] Free -

This is the closest you will get to a "future simulator." Sign up for the of Windows Insider. Microsoft pushes experimental features here. While they call it Windows 11 (or eventual Windows 12), you will see UI changes years before the public. It is technically the future.

: An interactive Windows 7 simulator accessible via browser. windows 13 simulator free

or a fan project designed to showcase hypothetical features. The Mockupverse Wiki Understanding Windows Simulators Windows simulator This is the closest you will get to a "future simulator