Cmi8738 Driver Windows 11 64 Bit Jun 2026

When you install Windows 11 64-bit on a fresh system, it does not include a native driver for the CMI8738. Windows Update will also fail to find one. The legacy driver from C-Media (versions 7.12.8.1740, for example) was built for Windows XP, Vista, and 7— all of which used a different audio stack (PortCls system driver). Windows 11 requires drivers to be WHQL-signed and compliant with the latest Kernel-Mode Driver Framework (KMDF).

If you've just upgraded to Windows 11 and realized your trusted sound card is silent, you aren't alone. This classic PCI/PCI-e audio chip has been a staple for decades, but getting it to work on Microsoft's latest 64-bit OS requires a bit of a workaround since official support has technically ended. Cmi8738 Driver Windows 11 64 Bit