Windows 11 Build 219961 (x64)_sadeempccomzip May 2026

: Overall performance was notably poor, especially during initial desktop loading.

is the first internal build of Windows 11 that leaked online on June 15, 2021. It provided the first public evidence that Microsoft was moving away from Windows 10, despite previous claims that it would be the "final" version of Windows. Key Features and Changes Windows 11 Build 219961 (x64)_SadeemPCcomzip

: Certain features, like the Start menu, were reportedly prone to not opening at all for some users. : Overall performance was notably poor, especially during

: Many parts of the OS, such as the volume rocker and some settings menus, still used older Windows 10 or even Windows 8 designs. System Requirements Key Features and Changes : Certain features, like

As an early leak, this build was not representative of the final product and contained several bugs:

This build showcased several significant user interface (UI) shifts that eventually became hallmarks of the official release:

: Much of the design, including the centered taskbar, was repurposed from the canceled Windows 10X project. Known Issues and Limitations