If Windows blocks the driver because it's too old, you may need to restart Windows in Advanced Startup mode to temporarily disable driver signing. Important Considerations PCI vs. PCIe:
Extract the ZIP file to a folder, e.g., C:\CMI8738_Driver . Cmi8738 Driver Windows 11 64 Bit
Official support for the CMI8738 has not been updated by C-Media specifically for Windows 11. However, several sources provide drivers that are reported to work on 64-bit versions of modern Windows: If Windows blocks the driver because it's too
Windows 11 (64-bit) strictly enforces and disables unsigned kernel drivers by default (Secure Boot + Driver Signature Enforcement). The last signed CMI8738 drivers were: Cmi8738 Driver Windows 11 64 Bit