How to install the latest version of DirectX - Microsoft Support
Includes DirectX 11.2 as the maximum supported version. Windows 8: Includes DirectX 11.1 as the maximum version. directx 12 download windows 8
If you are running Windows 8, your system is restricted to the following official versions: How to install the latest version of DirectX
These versions are built directly into the operating system and can only be updated through Windows Update; there is no standalone "DirectX 12" installer for these older systems. Why You Can't Download DirectX 12 for Windows 8 directx 12 download windows 8