Windows 10 build 9807

Windows 10 build 9807 is a pre-Technical Preview build of Windows 10, which was uploaded to the BetaWiki Discord server on 17 May 2022 only in the Simplified Chinese language and under the x86 architecture. This build was originally released to Microsoft partners participating in the Ecosystem Engineering Access Program (EEAP), as indicated by the  branch.

It is the first build to update the kernel version to 6.4, and the last build to refer to itself as Windows 8.1.