No Sound Error: The device is being used by another application.

Original Title: Sound "Device in Use" on Laptop

I have a Lenovo T30 with a Realtex Audio device. When I start my laptop I have sound but at somepoint it stops. I don't know what is causing it.

If I right click on the speaker and perform a test I get "Devise in Use" .. "The device is being used by another application."

I have checked the Device Manager and no problems are showing. I have tried stopping / starting the service but this doesn't change anything.


Hi Dennis,

Thank you for posting in Microsoft Community Forum.

Please be assured that we would do our best to assist you.

This issue could be caused due to incorrect settings or corrupt audio drivers.

Please answer the following questions so that we can help you.

  1. What is the exact make and model of the computer?
  2. From how long are you facing this issue?
  3. Do you recall any changes made prior to the issue?

Follow the methods below and check if it helps:

Method 1

Run the Playing Audio troubleshooter and check if it helps. Refer the below mentioned article for the same.

Open the Playing Audio troubleshooter

Also refer:

Tips for fixing common sound problems

Method 2

If the issue persists you may try to uninstall the audio drivers.

Follow the steps provided below to uninstall the Audio drivers.

  1. Press Windows Key + R, type “devmgmt.msc” and press Enter.
  2. Expand ‘Sound Video and Game Controllers”.
  3. Right-click on ‘High Definition Audio Device and select ‘uninstall’.
  4. Follow the prompt and restart the computer.

Now re-install the latest audio driver from the computer manufacturer website and check if it helps.

Refer to the article for additional information.

No sound in Windows

Hope this information is helpful. Please do let us know if you need further assistance, we’ll be glad to assist you.

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Question Info

Last updated July 31, 2021 Views 7,428 Applies to: