Windows 8.1 Build 9374 is a historical pre-release version of Windows 8.1 (codenamed "Blue") that was leaked to the public on . This build is notable for being the first to officially identify itself as "Windows 8.1". Overview of Build 9374
: This denotes the 32-bit version of the operating system. The x86 architecture refers to a family of instruction set architectures based on the Intel 8086/8088 processors. A 32-bit system can use 4GB of RAM (though, in practice, it can use slightly less due to hardware reserved memory).
New "Apps" button using an arrow glyph to view all installed software.
While it was an early preview, Build 9374 introduced several features that eventually became standard in the final retail version: