ImportError: DLL load failed while importing _C:

This error typically occurs when there is an issue loading the _C module, which is usually related to the PyTorch library. Here are a few possible solutions:

1. Check PyTorch installation: Make sure you have installed PyTorch correctly. If you haven't installed it, you can use the following command to install it:

   pip install torch torchvision

2. Check CUDA installation: If you are using a GPU and have installed CUDA, ensure that the versions of PyTorch and CUDA are compatible. You may need to install a specific version of PyTorch that matches your CUDA version.

3. Reinstall PyTorch: Try uninstalling and reinstalling PyTorch to ensure a clean installation. Use the following commands to uninstall and reinstall PyTorch:

   pip uninstall torch torchvision
   pip install torch torchvision

4. Check environment variables: Ensure that the necessary environment variables, such as PATH or CUDA_HOME, are correctly set. These variables should point to the correct locations of the required files.

5. Update the graphics driver: If you are using a GPU, try updating your graphics driver to the latest version compatible with your hardware.

If none of these solutions work, please provide more details about your system configuration, the steps you've taken so far, and any additional error messages you receive.