#7197 CUDA GPU acceleration unavailable. Verify NVIDIA GPU & CUDA installation (Help -> CUDA Help).

CUDA acceleration can only work with an NVIDIA GPU, plus a correct CUDA 12.8+ / cuDNN 9.11+ installation, and your software path D:/Program file/... contains a space, which can also cause loading failures for the CUDA-related DLLs.

Follow these steps:

1. Confirm hardware: only NVIDIA GPUs support CUDA acceleration. AMD/Intel GPUs and integrated graphics are not supported.
2. Check your CUDA toolkit version: open CMD and run nvcc -V. It must be 12.8 or higher.
3. Check your driver and its max supported CUDA version: run nvidia-smi. Update your NVIDIA driver to the latest version.
4. Confirm cuDNN 9.11+ is installed, and that its bin and lib folders are added to the system Path environment variable.
5. Check that the CUDA bin and lib directories are also correctly present in the system Path environment variable — a missing entry is the most common cause of "CUDA unavailable" even after installation.
6. Move the software to a simple all-English, no-space path, e.g. D:/pyVideoTrans. Your current path D:/Program file/win-pyvideotrans-v4.12-0908 contains a space and should be avoided.
7. Restart the software after making the changes.

If it still fails after all of the above, please provide the last ~30 lines from the latest log file in the software's logs/ folder for analysis.

请查阅相关文档：

• Windows上配置CUDA和cuDNN
• windows上安装CUDA12.6和cuDNN9.8