Sometimes modern GPUs miss the older DirectX files.
If you are on a laptop with integrated Intel graphics, you might see this error because the control panel defaults to "Power Saving." sa directx 30 system requirements fixed
A: Check your PCIe lane speed. SA DX30 requires PCIe 4.0 x16. If you are using a riser cable or a slot running at x8, you will bottleneck. Force Gen4 in your BIOS. Sometimes modern GPUs miss the older DirectX files