Realtek High Definition Audio -hda- Version R2.8x -9239.1- Whql Site
Cause: The “AEC” (Acoustic Echo Cancellation) was improperly enabled for non-skype applications. Fix: Registry edit:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\MMDevices\Audio\Capture
Find your mic’s property set → Set FXEnable from 1 to 0. Find your mic’s property set → Set FXEnable
| Source | URL / Method | |------------|------------------| | Realtek official | Rare for exact R2.8x; newer versions at realtek.com/en/component/zoo/category/pc-audio-codecs-hd-audio-codecs-software | | Motherboard OEM | Search your motherboard model + “Realtek driver 9239.1” | | Windows Update | Optional drivers → May push 9239.1 or newer | | Driver repositories (caution) | Station-Drivers, Guru3D — verify hash if possible | ⚠️ Avoid generic “driver updater” tools — they
⚠️ Avoid generic “driver updater” tools — they often bundle malware. 9239.1 tells you the exact compilation.
The older "Realtek HD Audio Manager" (the brown/orange interface) is deprecated. The new UAD system requires a specific driver version to communicate with the UWP app from the Microsoft Store. Driver 9239.1 is explicitly compatible with the latest Realtek Audio Console (version 1.46 or higher).
This is the most critical part. While "R2.8x" tells you the family, 9239.1 tells you the exact compilation.
.1 release generally indicates a full public WHQL release, not a beta or hotfix (which might be .2 or .3).Several users across Reddit and Guru3D have reported the following with 9239.1: