Microsoft is modernizing the File Explorer app in Windows, gradually introducing modern UI elements while much of the application retains its older design. A hidden modernized File Properties window has been found in the latest Windows 11 preview build, indicating plans for a complete overhaul of the File Properties dialog. This effort is part of Microsoft's broader initiative to integrate WinUI across the Windows Shell, including enhancements to the Start menu and in-box applications, as part of the Windows K2 project. The modernized File Properties feature has not yet been officially announced, but its appearance in preview builds suggests further updates are forthcoming.