Windows 10 KB4556799 Update Causing Audio Issues

Almost a week ago, Microsoft released the Windows 10 KB4556799 cumulative update. This cumulative update comes with many security fixes, and it is rolling out to Windows 10 PCs with November 2019 Update, May 2019 Update, and October 2018 Update.

Sadly, similar to the previous updates of 2020, even this update is plagued with two serious issues.

In this article, we have shared the security fixes offered by the Windows 10 KB4556799 update accompanied by the problems that it causes.

Lastly, we have also shared several fixes to overcome the issues from KB4556799 Update.

Security Fixes Offered By Windows 10 KB4556799 Update

These are some of the security fixes offered by the May 2020 Windows 10 cumulative update.

  • Updates to improve security when using Internet Explorer and Microsoft Edge.
  • Updates to improve security when using input devices such as a mouse, keyboard, or stylus.
  • Updates for verifying usernames and passwords.
  • Updates to improve security when using Microsoft Xbox.
  • Updates to improve security when Windows performs basic operations.
  • Updates for storing and managing files.
  • Updates to improve security when using Microsoft Office products.

Problems Caused By Windows 10 KB4556799 Update

The May 2020 Windows 10 update is causing audio issues and temporary data loss for some users. A user reported that this update resets all of their audio driver configurations and even removes Realtek audio driver. Another common issue reported by users is that their audio devices don’t pass sound after installing the update.

A user reported to Windows Latest, that

“With this update, my audio devices have been completely broken. I have Realtek audio drivers and I can’t play anything via the speaker and even the headphones. I’m experiencing the problem on my desktop and Surface Pro 6. I clicked on the Sound icon and initiated Troubleshooting, which said that audio enhancements couldn’t be loaded. I uninstalled the update and audio is now back,”

How To Fix Sound Issues After Windows 10 KB4556799 Update

1. Disable Audio Enhancements

As mentioned above, the sound issues caused by the latest Windows 10 update are

  • Playback problems.
  • Sound distortion.
  • Audio devices would not pass sound.
  • Sound will pass simultaneously via the headphone and speakers.

Disable Audio Enhancements

In order to fix these issues, you can Disable Audio Enhancements. To do so, go to sound options in the control panel. Select Realtek speakers. Go to properties then go to advanced, deselect Sound Enhancements. If your problem isn’t fixed yet then try out the next solution.

2. Uninstall The Update

Uninstalling the KB4556799 update is one of the most effective ways to fix the problems caused by this update. You can follow these simple steps to uninstall the update.

  • Go to Settings and click “Update and Security.”
  • Choose “Windows Update” and open “View update history.”
  • Click “Uninstall updates.”
  • Locate the latest update and uninstall it.
  • Lastly, Reboot your device.

3. Fix Sound Issues

Lastly, in order to fix the sound issues you can check out the official sound problem fixes shared by Microsoft.

Our team has also written an article on How To Fix No Audio Output Device Is Installed In Windows 10.

Do share the solutions if you find any in the comments section and help the Techworm community.

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Anubhav Tyagi
Anubhav Tyagi
Just a normal guy who listen to lots of music, but apart from that I love Tech!


  1. I am facing some system freezes and hang related problems by this update, but in my system there is no uninstall option for this update.
    Please help me out in other way to uninstall it.


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