What is the cmusbdac.sys error? What causes the cmusbdac.sys blue screen error? How to solve the cmusbdac.sys crash issue? This post from MiniTool will walk you through how to fix cmusbdac.sys BSOD.

It is common for you to encounter the Blue Screen of Death error when starting on the computer. In general, you may encounter several BSOD errors, such as the iusb3xhc.sys, volsnap.sys error and so on.

Hence, it is also common for you to come across the cmusbdac.sys BSOD error. In general, this cmusbdac.sys blue screen error may occur when you are trying to use a USB microphone in your computer, or the C Media USB Audio Class Drive.

So, in the following section, we will show you how to solve the cmusbdac.sys system_thread_exeception_not_handled error.

Top 4 Ways to Fix CMUSBDAC.SYS BSOD on Windows 10

In this section, we will show you the solutions to the cmusbdac.sys crash error. Usually, when you encounter the error cmusbdac.sys, you can choose to restart the computer. Restarting the computer often enables you to enter the desktop successfully. If no, you can choose to boot the computer into Safe Mode and take the following measures.

Way 1. Check Virus and Remove Malware

If there are viruses or malware on your computer, you may also encounter the cmusbdac.sys blue screen error. So, in order to fix this issue, you can check whether there is virus or malware on your computer and remove them.

Now, here is the tutorial.

  1. Press Windows key and I key together to open Settings. Then choose Update & Security to continue.
  2. In the pop-up window, go to the Windows Defender tab.
  3. Then click on Open Windows Defender Security Center.
  4. Next, choose Virus & Threat Protection.
  5. In the pop-up window, click Quick Scan to continue.

click Quick Scan

Then Windows Defender will begin to scan your computer. If there are viruses or malware on your computer, Windows Defender will deal with them.

When it is finished, reboot your computer and check whether the cmusbdac.sys crash error is solved. If this solution is not effective, try other solutions.

Solution 2. Reinstall C-Media USB Audio Class Driver

In order to fix the cmusbdac.sys blue screen error, you can also choose to reinstall the C-Media USB Audio Class driver.

Now, here is the tutorial.

  1. Press Windows key and R key together to open Run dialog, then type devmgmt.msc in the box and click OK to continue.
  2. In the pop-up window, expand the Sound, video and game controller.
  3. Select the C-Media USB Audio Class driver and right-click it.
  4. Choose Uninstall to continue and follow the on-screen instruction to uninstall it.
  5. After that, restart your computer and go to the manufacturer’s website to download the C-Media USB Audio Class driver, and then reinstall it.

After you have completed all steps, reboot your computer and check whether the cmusbdac.sys system_thread_exeception_not_handled is solved.

Solution 3. Update All Available Drivers

In order to fix the cmusbdac.sys error, you can choose to update all available drivers.

Now, here is the tutorial.

  1. Open Device Manager as the way listed above.
  2. Then select the driver you want to update and right-click it.
  3. Then choose Update driver from the context menu to continue.
  4. Then click Search automatically for updated driver software to continue.

choose Search automatically for updated driver software

When it is finished, reboot your computer and check whether the cmusbdac.sys blue screen error is solved.

Solution 4.  Run System Restore

In order to fix the cmusbdac.sys crash error, there is an available way for you. You can choose to run system restore if you have created a system restore point before. Running system restore will not affect your personal files.

Now, here is the tutorial.

  1. Type Create a restore point in the search box of Windows and choose the best match one.
  2. Go to the System Protection tab.
  3. Click System Restore… to continue.
  4. Then click Next.
  5. Select a restore point. If there are several restore points, you can choose them according to the creating time and description.
  6. Confirm the restore point settings and click Finish.

choose Finish

When it is finished, reboot your computer and check whether the cmusbdac.sys error is solved.

Final Words

To sum up, this post has introduced what may cause the cmusbdac.sys error and also shown 4 ways to fix it. If you come across the same error, try these solutions. If you have any better solution, you can share it on the comment zone.

  • Linkedin
  • Reddit