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Background applications or overlays (like Discord, GeForce Experience, or Steam) are interfering with the game’s graphics engine.
Essential Windows libraries required for DirectX 11 are corrupted or missing.
The "failed to initialize graphics backend for d3d11" error is generally solved by ensuring your system is fully updated. Prioritize updating your GPU drivers, as they act as the bridge between your hardware and the Direct3D software component.
Change the preference to (which targets your dedicated NVIDIA/AMD card) and click Save . Via NVIDIA Control Panel:
The DirectX installation on your system is broken or outdated.