Microsoft has announced its first Windows 11 preview build today. Windows Insiders can choose to download the Windows 11 preview ( build 22000.51 ) now. The preview can access the new Start menu and multitasking features along with an updated Microsoft Store. In contrast to the previous Windows 11 leak , this official preview comes with an updated File Explorer that replaces the ribbon with a command bar that will simplify the management of files a bit more. The preview will feature most of the visual improvements to Windows 11 that Microsoft announced in the last week. The new build comes with the Start menu, an interface that resembles a launcher and has round corners across. There are also improvements to the notification center and volume flyouts as well as other areas. If your computer is equipped with an accelerometer, it will be able to detect motion. Windows 11 lock screen will come with a parallax effect. This preview also includes Windows 11's brand new themes, includin