How to fix “Unable to load sound card driver, code 39 or code 10” error (Solved) –

The customer’s computer received the following error in the device manager: The sound card (Realtek AC97) was marked with an exclamation mark and the following error appeared in the device properties: “Windows cannot load the device driver for this hardware. The driver may be corrupted or missing. (Code 39)”. Error 39 often appears after installing Logitech USB webcam drivers.

The solution below contains step-by-step instructions on how to resolve “Error Code 39” on your sound card. The solution works perfectly on Windows XP OS, but also works on Windows 7 or Windows Vista OS.


How to solve sound card error code 39 or code 10.

Before solving sound card errors by following these steps, download and install the latest drivers for your sound card from the manufacturer’s website, and then check that your sound card is working.

Also, “Windows audiothere is a “service”.Started“. For this:

1. Click on “WindowsImage-201_thumb + “RClick the ” button to download Running dialog box.

2. write “services.msc” and press Enter.


3. In the list of Services in the right pane, click “Windows audio“service” isStarted“.


4. If “Windows audio” service does not start, then:

  1. Double click open “Windows audio” select features and “Launch type” to “Automatic“.
  2. click onOK” & restart your computer


5. After restarting, check if your audio card is working now, otherwise continue troubleshooting with the steps below.

Step 1. Delete the wrong sound card registry keys.

1. Open Windows Registry editor. For this:

  1. Click on “WindowsImage-201_thumb_thumb_thumb_thumb[1] + “RClick the ” button to download Running dialog box.
  2. write “regedit” and click Enter.


2. Go inside the Windows registry (from the left panel) and highlight this key:



3. In the right pane, click to highlight “.Advanced filters” key.


4. Click on “Editing” menu and select “Delete“.

high filters

5. Do the same (Delete) “Bottom filters” key is found.

6. Shut down Registry editor.

7. Restart your computer.

8. Now check if your sound card is working. If not, go to step 2.

Step 2. Remove the sound card from the device manager.

1. It’s open Device Manager. For this:

  1. Click on “WindowsImage-201_thumb8_thumb4 + “RClick the ” button to download Running dialog box.
  2. write “devmgmt.msc” and click Enter.


2. In Device Manager, double click expand”Sound, video and game controllers“.


3. Right click on each Sound device found there and selectDelete“.

remove volume_controller

4. Restart your computer.

5. After restarting, wait until Windows automatically reinstalls the sound card drivers. *

* Note. If Windows cannot automatically install the drivers for your sound card, you must download and install the latest sound card driver from the manufacturer’s site.

You are done!

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