BakaBryan
Buyer of tech
- Joined
- Apr 27, 2026
- Messages
- 7
After updating the BIOS to version **7D40vAF**, the **onboard Realtek Audio Device disappeared** from Windows completely.
It is no longer visible in Device Manager — neither under sound devices nor under system devices (no "High Definition Audio Controller" either).
Trying to install or update the Realtek Audio Control on the Microsoft Store gives me the old **missing required driver: 'Realtek-RealtekHSA.inf'**
Also, on a different note, don't know if this is related to the BIOS update...probably is since it started right after — After trying to **Shut Down** and Windows doing its animation, the system stays in a state of all the LEDs, such as the Motherboard, case lighting and all the fans being still on and kicking.
Here is what I’ve tried so far:
- Confirmed HD Audio is Enabled in the BIOS, even with a quick OFF/ON cycle.
- Performed CMOS reset and loaded optimized defaults.
- Updated Intel Chipset drivers and MEI drivers from the official MSI site.
- Downgraded BIOS to an way earlier version 7D40vA7 with no success.
- Reinstalled latest Realtek AD multiple times (as well with an uninstall through DDU).
- Performed a complete clean WIndows install, multiple times for good measure.
First time posting and requesting help here...having honestly never any issues with MSI products, coming from 5 fully self-build systems, with them on the MB, GPU and PSU side.
Again, could you please help me, much obliged.
It is no longer visible in Device Manager — neither under sound devices nor under system devices (no "High Definition Audio Controller" either).
Trying to install or update the Realtek Audio Control on the Microsoft Store gives me the old **missing required driver: 'Realtek-RealtekHSA.inf'**
Also, on a different note, don't know if this is related to the BIOS update...probably is since it started right after — After trying to **Shut Down** and Windows doing its animation, the system stays in a state of all the LEDs, such as the Motherboard, case lighting and all the fans being still on and kicking.
Here is what I’ve tried so far:
- Confirmed HD Audio is Enabled in the BIOS, even with a quick OFF/ON cycle.
- Performed CMOS reset and loaded optimized defaults.
- Updated Intel Chipset drivers and MEI drivers from the official MSI site.
- Downgraded BIOS to an way earlier version 7D40vA7 with no success.
- Reinstalled latest Realtek AD multiple times (as well with an uninstall through DDU).
- Performed a complete clean WIndows install, multiple times for good measure.
First time posting and requesting help here...having honestly never any issues with MSI products, coming from 5 fully self-build systems, with them on the MB, GPU and PSU side.
Again, could you please help me, much obliged.
