How to Fix Windows Defender Error Code 0x8050800c on Windows 10

During the latter part of 2016, quite a few Windows 10 users have stared experiencing an issue with Windows Defender where they see error messages containing error code 0x8050800c quite often while using Windows 10’s built-in defense against viruses, malware, spyware and other external threats. In most cases, affected users see error messages containing error code 0x8050800c when using Windows Defender to scan their computers for harmful invaders, although the error code is also known to pop up in other instances. When an affected user runs into an error message containing error code 0x8050800c while trying to scan their computer for security threats using Windows Defender, the scan fails.

Windows Defender not being able to scan your computer for security threats and make short work of any invaders that may have made their way through your computer’s firewalls and safety nets is a big problem because if your computer comes under attack while Windows Defender is unfit for duty, you’ll be left helpless in the midst of war. Thankfully, it is possible to fix this issue and get rid of all those annoying error messages containing error code 0x8050800c. The following are the most effective solutions that you can use to try and resolve this problem:

Solution 1: Install any and all available Windows updates for your computer

The root of this problem in your case may just be a bad patch or update deployed to your computer, and if that’s the case, a Windows update designed to rectify the issue would surely inbound. Many Windows 10 users affected by this problem have been able to get rid of it by simply installing any and all Windows updates available for their computer. In order to use this solution, you need to:

  1. Open the Start Menu.
  2. Click on Settings.
  3. Click on Update & security.
  4. Click on Windows Update in the left pane.
  5. In the right pane, click on Check for updates.
  6. Wait for Windows Update to check for and retrieve any and all available updates for your computer.
  7. If there are any updates available for your computer, download and install them.
  8. Once all available updates for your computer have been installed, restart the computer and check to see whether or not the issue persists once it boots up.

Solution 2: Use the Norton Removal Tool

As farfetched as it may sound, you might be suffering from this problem because you, once upon a time, installed a Norton application on your computer and then uninstalled it. However, the Norton application was not uninstalled completely and left some things behind, giving birth to this issue. If you even vaguely remember having a Norton application on your computer, you should use the Norton Removal Tool to get rid of any remnants left behind by the application as this could very well fix this issue for you. In order to apply this solution, you need to:

  1. Click here to download the Norton Removal Tool.
  2. Wait for the Norton Removal Tool to be downloaded.
  3. Once the utility has been downloaded, navigate to wherever it was downloaded to.

  4. Double-click on the downloaded file to launch it.
  5. Follow the onscreen instructions and go through the utility to get rid of any installed Norton applications and any remnants left behind by Norton applications that were once installed on your computer.
  6. Once you have gone through the Norton Removal Tool, restart your computer in order for the changes made to take effect. When your computer boots up, check to see whether or not the problem was resolved.

Kevin Arrows
Kevin is a dynamic and self-motivated information technology professional, with a Thorough knowledge of all facets pertaining to network infrastructure design, implementation and administration. Superior record of delivering simultaneous large-scale mission critical projects on time and under budget.

Expert Tip

How to Fix Windows Defender Error Code 0x8050800c on Windows 10

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