High Definition Audio -hda- Version R2.8x -9239.1- Whql | Realtek

The suffix "WHQL" means the driver has passed Microsoft’s Windows Hardware Quality Labs testing. WHQL certification indicates that Microsoft has tested the driver for basic compatibility and stability with supported Windows versions and has digitally signed it. WHQL signing reduces driver-installation friction (Windows is less likely to block it) and provides a level of assurance that the driver meets Microsoft’s baseline requirements.