Run "Disk Cleanup," select your C: drive, and ensure "DirectX Shader Cache" is checked before hitting OK. 5. Force a DirectX Version
The game may be trying to use DirectX 12 features on a system only supporting DirectX 11. errgfxd3dshader1
These are small programs that tell the GPU how to draw light, shadow, and color. 1: Typically indicates a "Generic Initialization Failure." Run "Disk Cleanup," select your C: drive, and
If your GPU is pushed beyond its factory limits, it may "hiccup" during complex shader calculations. Run "Disk Cleanup
Go to C:\Users\[YourName]\AppData\Local\NVIDIA\DXCache and delete the contents.
If the game allows it, try switching from DirectX 12 to DirectX 11 (or vice-versa). You can often do this in the game's "Launch Options" by typing -dx11 or -dx12 .