Windows 10 build 18947 (rs prerelease)

Windows 10 build 18947 (rs_prerelease) is an internal build of the Windows 10 May 2020 Update, which was accidentally flighted to all Insiders in the Fast Ring on 24 July 2019.

Breaking the known Insider Program release routine, Microsoft also managed to accidentally release build 18946 and the rs_xbox compile of this build before simultaneously pulling all three releases after publishing the AMD64 variant of this build within five minutes. The UX routine was also broken in this build, bringing with it a significant change to the user interface, which is reminiscent to the design changes found in Windows 10X and Windows 11.

New features

 * This build has the new Control Center design from builds 18945, 18946] and the [[Windows 10 build 18947 (rs_xbox)|rs_xbox compile of this build. Unlike other builds containing the new design, this build's Control Center is not functional. To enable the new design, open the Registry Editor and navigate to, then create a DWORD value named   with a value of 1.