The common "DirectX End-User Runtime" installer often found on the Official Microsoft Download Center only installs legacy libraries (DX9, DX10, DX11) required by older games; it does not update or install DirectX 12. How to Install or Update DirectX 12 on Windows 10
However, if you are having issues with missing DLLs or legacy games, you may actually need the , which does have an offline installer that works on Windows 10 64-bit. Option 1: Official Way (Windows Update) directx 12 windows 10 64 bit offline installer
Here’s the official way to get the :
Before hunting for an installer, verify what you already have: Press the , type dxdiag , and hit Enter. The common "DirectX End-User Runtime" installer often found