You must be on Windows 10 version 14393 (Anniversary Update) or later, as older versions do not support SM6. How to Check Your Current Shader Model
It is deeply integrated into the DX12 pipeline, making it essential for DirectX Raytracing (DXR) and advanced compute shaders. Do I Need to "Download" Shader Model 6.0? Shader Model 6.0 Download Windows 10 64 Bit
Download the latest Game Ready Driver or Studio Driver via GeForce Experience or the official NVIDIA driver download page. You must be on Windows 10 version 14393