Windows 8.1 build 9271

Windows 8.1 build 9271 is the earliest known and available build of Windows 8.1, which was uploaded to the BetaWiki Discord server on 27 June 2022, alongside builds 7777 and 7779. Due to its earliness, this build identifies itself as its predecessor in many areas and still bears the 6.2 kernel version. This is the only known build of Windows 8.1 that was compiled in 2012.

Setup
Setup is similar to Windows 8, except the borders on the fake Aero setup interface are now opaque.

Pre-RTM wallpapers
Despite being newer than the RTM build of Windows 8, it still uses the older wallpapers used in Windows 8 build 8102 to 8195, and Windows 8 build 8277 to 8305's. This is similar to how Windows 8 build 7700 uses the "betta fish" wallpaper seen in many Windows 7 builds. The wallpaper was reverted to the default wallpaper starting in build 9299.

General
The Earth and Flower theme names are swapped.

Windows Defender
Windows Defender does not launch, with error code 0x800b0101.