no input or output sound

Question

I have no sound. When I checked the systems indicates that 'No output devices found' and 'no input devices found'.

I tried several things but this has never happened before.

I am stiuck.

Please assist.

Answer 1

1

Right click your Start Button and open Device Manager.

Expand the 'Sound, Video and Game COntrollers' section.

Please provide a screenshot of that full Device Manager window.

2

Click your Start Button, then just type msinfo and press Enter, please provide a screenshot of the resulting System Information window.

Answer 2

Hi Didier J. Desmedt,

Thanks for reaching out to Microsoft Q&A Forum. I understand that your Windows 11 Home device shows “No output devices found” and “No input devices found,” resulting in no sound at all.

Please make sure you already tried the Q&A Assist steps. In addition, please try the following.

Before we proceed, I’d like to narrow this down a bit to better understand the scope of the issue:

1, Did this issue start after a recent Windows update, driver update, or system restart?

2, Are you using built‑in speakers/microphone only, or do you normally connect external audio devices such as USB headsets or HDMI audio?

In the meantime, you can try these steps:

1, Check if audio devices are hidden in Device Manager

• Open Device Manager
• Click View, then select Show hidden devices
• Expand Sound, video and game controllers and also Audio inputs and outputs
• If any audio devices appear disabled, right‑click and choose Enable

2, Verify Windows Audio services

• Press Windows key + R, type services.msc, and press Enter
• Locate Windows Audio and Windows Audio Endpoint Builder
• Make sure both services show Running and Startup type is set to Automatic
• If not, start them manually

3, Reinstall audio devices using legacy detection

• In Device Manager, click Action at the top
• Select Add legacy hardware
• Choose "Install the hardware that I manually select"
• Select Sound, video and game controllers and complete the wizard

4, Check BIOS/UEFI audio setting

• Restart the device and enter BIOS/UEFI setup
• Look for an option related to Onboard Audio or HD Audio
• Ensure it is enabled, then save changes and exit

5, Perform a system file check

• Open Command Prompt as administrator
• Run sfc /scannow
• Restart the device after the scan completes

6, Test with a clean boot environment

• Disable all non‑Microsoft startup items
• Restart the device and check if audio devices appear
• This helps rule out software conflicts affecting audio detection

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Answer 3

To resolve the issue of no input or output sound and the message indicating that 'No output devices found' and 'no input devices found', you can try the following steps:

1. Check Audio Drivers: Open Device Manager and ensure that your audio drivers are installed and functioning properly. If they are not, you may need to update or reinstall them. You can do this by right-clicking on your audio device under 'Sound, video and game controllers' and selecting 'Update driver'.
2. Run Windows Troubleshooter: Go to Settings > System > Sound, and look for the Troubleshoot option under the Output section. Running this troubleshooter can help identify and fix issues with audio devices.
3. Check Playback Devices: Right-click the speaker icon in the system tray, select 'Open Sound settings', and ensure that the correct playback device is selected. If no devices are listed, it may indicate a driver issue or hardware problem.
4. Check for Windows Updates: Sometimes, audio issues can be resolved with the latest Windows updates. Make sure your system is up to date.
5. BIOS/Firmware Update: Ensure that your BIOS is up to date, as audio initialization can depend on firmware.

If these steps do not resolve the issue, it may be a hardware problem, and you should consider contacting your device manufacturer for further assistance.

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References:

• I have no sound on an new LG Gram laptop - Microsoft Q&A
• How to fix this. no audio device is installed - Microsoft Q&A