Classic 7 is Windows 10 LTSC cosplaying as Windows 7

Classic 7 is a modified version of Windows 10 IoT LTSC that resembles Windows 7, created by compiling skins, themes, and add-ons from older Windows versions. It includes real binaries from Windows 7 and earlier versions, adapted to run on Windows 10. The project has been under construction for over a year and a half.