If you encounter a "Driver Signature" error during installation, you may need to run the .exe as an Administrator or temporarily disable driver signature enforcement.
Windows comes with a generic HD Audio driver. It provides basic sound—stereo output and microphone input. However, it lacks the ability to utilize the specific hardware features of the Realtek chip on your motherboard.
79 . 🔈 Fix Your Audio Issues: Realtek HD Audio Driver (R2.79)