Press the on your keyboard to open the Run dialog box. Type dxdiag into the box and press Enter . Wait a few seconds for the DirectX Diagnostic Tool to load. Look at the bottom of the System tab.
DirectX 12 represents a significant architectural shift from its predecessors (DX11 and DX9). It is designed to exploit the full power of modern multi-core CPUs and advanced GPUs. directx 12 windows 10 64 bit offline installer link
You may find a file online called dxwebsetup.exe . Press the on your keyboard to open the Run dialog box