Microsoft today releases its first Windows 11 Preview build. Windows Insiders can get the Windows 11 preview ( version 22000.51 ) today. It features access to the new Start menu, multitasking, and a revamped Microsoft Store. In addition, the official preview features an updated File Explorer. Instead of the HTML11 leak , it replaces a ribbon with a command line to make file management easier. In this preview, most of the Windows 11 visual improvements that Microsoft has revealed will be made. This preview includes the new Start Menu with its center launcher-like interface, rounded corners throughout OS, improvements to the notification center, volume flyouts, and many other features. Windows 11 lock screen includes a parallax motion effect if your PC has an accelerometer. These previews include Windows 11's brand new themes and improvements in dark / lighter mode. They also feature the new Widgets function. Microsoft has paired all the new themes -- Glow Captured Motion Sunrise,