Realtek-high-definition-audio-64bit-win7-win8-win81-win10-r279.exe

Likely acoustic echo cancellation or noise suppression enabled by mistake. In Realtek Manager → Microphone tab → Disable "Acoustic Echo Cancellation" and "Beamforming".

Check the box that says and click Uninstall . Restart your computer. Step 3: Run the Installer

The executable file is the installer for version R2.79 of the Realtek High Definition Audio drivers. This specific package is designed for 64-bit versions of Windows, ranging from Windows 7 through Windows 10.

If you find this file on a random driver download site, always scan it with VirusTotal first. Official sources are your motherboard manufacturer’s support page or the Realtek download center (though Realtek’s official site is famously user-unfriendly).