The problem? Most official downloads try to force a small "web installer" that requires an active internet connection to fetch files. If you are offline, or if the web installer keeps failing, you need the (also known as the End-User Runtime).
The only safe source is Microsoft. The file name is dxwebsetup.exe , but when run with specific parameters (or extracted), it acts as the full installer. directx 11 offline installer
Microsoft does not always make this link easy to find on their main support page. Below is the direct link to the official Microsoft Download Center for the . The problem
But as the days went by, Alex began to notice some issues with their system. Some games and applications started to crash or behave erratically. Alex suspected that the offline installer might have caused the problems and started to investigate. The only safe source is Microsoft
We do not recommend downloading DLL files or installers from third-party "DLL database" sites, as these are often riddled with malware.
Resolving "d3dx11_43.dll missing" or similar errors that occur when a game can't find specific older libraries. How to Download and Install DirectX 11 Offline