How to fix a locked volume

Hi. I'm David, and I'm happy to help you.

To be able to assist you better, please clarify the following:

• Are you trying to play audio via internal speakers, external speakers, or headphones?
• If it is an external speaker or headphones, does it have a standard audio connector (Jack connector) or USB connector, or is it connected via Bluetooth?
• Is there an X in the speaker icon next to the clock?

Also, share a screenshot of your system information.

• Press "Windows + R", type msinfo32 and press Enter.

Maximize the window and use the shortcut "Windows + Shift + S" to use the screenshot tool.

Looking forward to your reply.

Try these steps in order on Windows 11 to unlock the volume and restore sound:

1. Check basic hardware and mute controls
   • Make sure speakers/headphones are firmly plugged in and powered on.
   • If using 3.5mm jacks, confirm they are in the correct port (usually green for output).
   • Unplug any headphones to see if the laptop speakers start working.
   • Turn up the volume on any external speakers and in any media apps being used.
2. Verify output device and volume in Windows
   • Select the Speakers icon on the taskbar.
   • Use the slider to raise the volume and make sure there is no mute symbol.
   • Select the arrow next to the volume slider and choose the correct output device (laptop speakers or the device actually in use).
3. Check sound settings and that nothing is disabled
   • Right-click the Speakers icon on the taskbar.
   • Select the arrow to the right of the volume slider, then the settings icon (More mixer settings).
   • In Volume mixer, ensure none of the device or app sliders show an "x" (muted). If they do, unmute or raise the volume.
   • Open Start > Settings > System > Sound.
   • Under Advanced, select More sound settings.
   • On the Playback tab, select the laptop speakers/output device, choose Properties.
   • Next to Device usage, make sure Use this device (enable) is selected.
4. Turn off audio enhancements
   • Go to Start > Settings > Sound.
   • In Output, select the device being used.
   • Scroll to Advanced settings and set Audio enhancements to Off.
5. Run the audio troubleshooter
   • Open Start > Settings > System.
   • Select Troubleshoot > Other troubleshooters.
   • In the Audio section, select Run and apply any fixes it suggests.
6. Check for “no audio device installed” or driver issues
   • If Windows shows “No audio device installed” or the volume stays at 0:
     • Open Device Manager and confirm an audio device is listed under Sound, video and game controllers.
     • If missing or with a warning icon, install or update the audio driver from the laptop manufacturer’s support site.
     • If a recent update broke sound, try rolling back the audio driver in Device Manager.

If the volume still appears locked at 0 after these steps and the correct device is enabled, the issue may be with the audio driver or hardware and may require the manufacturer’s support.

References:

• Fix sound or audio problems in Windows
• No audio with Windows 11 - Microsoft Q&A
• How to fix this. no audio device is installed - Microsoft Q&A
• cannot increase volume even if trouble shooter updates it - Microsoft Q&A
• NO SOUND DEVICE INSTALLED - Microsoft Q&A