Even with the "best" download, you might encounter issues. Here is your troubleshooting guide:
Since Windows 10 64-bit handles memory differently, the installer would automatically detect the architecture and inject the missing files (like the elusive d3dx11_43.dll ) into the The Extraction: Windows 10 Directx 11 BEST Download 64 Bit
If you prefer an automatic method, many modern games will install the required DirectX 11 runtime for you. Even with the "best" download, you might encounter issues