sound stopped coming through headphone

If sound is coming through your computer speakers but not through your headphones, here are some troubleshooting steps you can follow:

1. Check Headphone Connection: Ensure that your headphones are properly connected to the audio jack on your headset or computer. If your headset has a separate audio jack, make sure it is plugged in securely.
2. Volume Control: Some headsets have physical buttons to control the volume. Check if the volume is turned down or muted.
3. Default Playback Device: Windows may switch audio to the default playback device when you remove the headset or if the headset is not detected. You can check and set your default playback device by going to Settings > System > Sound.
4. Sound Control Panel: Open the Sound Control Panel by typing mmsys.cpl in the command prompt. Ensure that your headphones are listed as an enabled device. If they are disabled, right-click and select "Show Disabled Devices" to enable them.
5. Audio Drivers: Ensure that your audio drivers are installed and up to date. You can check this in the Device Manager. If necessary, update or roll back your audio drivers.
6. Troubleshooter: You can run the audio troubleshooter by going to Settings > System > Troubleshoot > Other troubleshooters to identify and fix any issues automatically.

If these steps do not resolve the issue, consider checking for any known issues with your specific headset or the Windows Mixed Reality settings if applicable.

References:

• I can't hear any sound in my headset, or sound is playing through my computer instead of my headset
• How to fix this. no audio device is installed - Microsoft Q&A