-dxlevel 90 (forces DirectX 9) or
DISM /Online /Cleanup-Image /RestoreHealth SFC /SCANNOW After each completes, reboot. SFC will replace any damaged DirectX-related files. Game overlays inject code into the rendering pipeline and frequently break D3D11 initialization. failed to initialize graphics backend for d3d11
If you still see the error after all this, your GPU may be physically failing. Run a stress test like for 10 minutes – if it artifacts or crashes with a similar error, contact your GPU manufacturer for warranty support. -dxlevel 90 (forces DirectX 9) or DISM /Online