How to Fix Missing or Disabled Stereo Mix in Windows 11 and 10
Restore the Stereo Mix recording device to capture your PC’s audio output.
Overview
Stereo Mix lets you record the audio your PC is playing (loopback). It’s often hidden or disabled by default. This guide shows how to reveal, enable, and fix Stereo Mix — usually via the Realtek audio driver.
Realtek Stereo Mix in Windows.
Key Takeaways
- Stereo Mix records system audio output.
- It’s frequently hidden/disabled — unhide it in Sound settings.
- A proper Realtek/audio driver is needed to expose it.
- Set it as the default recording device to use it.
Fix 1: Unhide and Enable Stereo Mix
1. Right-click the speaker icon > Sound settings > More sound settings (or run mmsys.cpl).
2. Go to the Recording tab.
3. Right-click an empty area and tick "Show Disabled Devices" and "Show Disconnected Devices".
4. Right-click "Stereo Mix" > Enable.
Fix 2: Install/Update the Audio Driver
Note: Download audio drivers/codecs only from your PC or motherboard maker’s official site (or Realtek’s official site).
1. Open Device Manager > Sound, video and game controllers.
2. Update the Realtek/audio driver, or reinstall it.
3. If Stereo Mix is still missing, install the official Realtek HD Audio codec for your device.
Fix 3: Set as Default and Adjust Volume
1. In the Recording tab, right-click Stereo Mix > "Set as Default Device".
2. Open its Properties > Levels and raise the volume.
3. Test by recording; you should capture the PC’s playback.
Troubleshooting
Problem: Stereo Mix isn’t listed at all.
Solution: Your audio driver may not expose it — install the manufacturer’s Realtek driver, or use a virtual audio cable as an alternative.
Problem: Enabled but records silence.
Solution: Set it as default, raise its Levels, and ensure the playback device matches what you’re recording.
Problem: Only the Microsoft "generic" driver is installed.
Solution: Install the OEM Realtek driver; the generic driver often omits Stereo Mix.
Problem: Apps don’t see it.
Solution: Set Stereo Mix as the default recording device, or select it as the input inside the app.
Conclusion
Stereo Mix is usually just hidden or missing due to the audio driver. Show disabled devices to enable it, install the proper Realtek driver if it’s absent, then set it as default and raise its level to record your PC’s output.
