Right-click the "Unknown Device" or "Multimedia Audio Controller." Select > Browse my computer for drivers .
However, "unofficial" does not mean "impossible." The Windows audio architecture (WDM - Windows Driver Model) has remained relatively stable. Many users have successfully forced drivers designed for Windows XP, Vista, or Windows 7 64-bit to function on Windows 11. Cmi8738 Driver Windows 11 64 Bit
: Many users successfully use the Windows 10 64-bit driver (version 8.1.8.1746) on Windows 11. These are often hosted on third-party repositories like DriverHub or DriverIdentifier . : Many users successfully use the Windows 10
If you encounter issues with the CMI8738 driver on your Windows 11 64-bit system, try the following troubleshooting steps: If the installer fails (which is common with
file, forced the manual installation through the Device Manager, and ignored the red "Unsigned Driver" warnings that flashed like sirens on his 4K monitor.
If the installer fails (which is common with very old software), you must manually point Windows to the driver file.
for the latest available generic drivers, though they may only go up to Windows 8 or 10. Third-Party Repositories : Sites like DriverScape