Alternatively, you can also go to Realtek official website to download and install the Realtek audio driver for your PC. Restart your PC to automatically reinstall Realtek audio driver.Tick “Delete the driver software for this device” option and click Uninstall to uninstall Realtek audio driver from your Windows 10 computer.Right-click Realtek Audio or Realtek High Definition Audio under “Sound, video and game controllers”.