[Solved] How to Fix Windows Defender Error Code 0x8050800c on Windows 10?

Windows Defender Error Code 0x8050800c

Are you unable to run Windows Defender scan on your Windows 10 system due to the 0x8050800c error code? If your answer is YES then you are at the right place, here in this blog we will discuss this irritating Windows Defender problem with their proper solutions.

We all know that the Windows Defender is default anti-virus software for Windows system developed by Microsoft. In Windows 10, you don’t need any third party antivirus tool, as Microsoft Defender performs scans automatically and fix all the malicious infections.

However, same as any other anti-virus software, Windows Defender user may also face different issues and error messages.

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One of the most irritating Windows Defender error messages is: Windows Defender Error Code 0x8050800c

This error message appears when the user tries to turn on the Windows defender, run a real-time scan or try to install security updates. The main reason for this error message is – Windows Defender Is Handled by Another AV.

A Complete error message is as follows:

An unexpected problem occurred. Install any available updates, then try to start the program again. For information or installing updates, see Help and Support.

The above-given content of 0x8050800c error message may vary, but the error code remains same. According to the computer professionals, this error message may prevent Windows Defender from running if your system contains some remnants of third-party anti-virus software.

That’s why it is recommended to remove all the contents of third party antivirus tool from your system, such as McAfee, Norton, Webroot, Spybot or another active on your system some time ago.

Along with the third-party software, Windows Defender Error Code 0x8050800c may also appear when a user installs Windows Anniversary Update. This happens because of the modified Windows 10 settings or damaged/outdated security updates.


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

Trick 1: Disable Periodic Scanning

  • Press Win key + Iand choose Updates & Security.
  • Search for the Windows Defender using the Windows Search option and click it.
  • Now, slide a toggle present under the Periodic Scanning to
  • At last, run the Windows Defender and click Turn on.

This trick is very effective and many people found this method helpful to fix 0x8050800c error.


Also Read: A Complete Guide to Fix Computers/Laptops Randomly Freezing Issue!


Trick 2: Install all the available Windows updates

An outdated system may become incompatible with the Windows Defender, so it is recommended to make sure that your system is updated. Go to the update section and install all the available updates for your system.

Follow the below-given steps one by one to make your system updated:

Step 1: Go to the Start Menu and then click on the Settings -> click on Update & security and then click on the Windows Update present in the left pane.

Step 2: Now go to the right pane and click on the Check for updates.

Step 3: After it, you have to wait for the Windows Update and check for and retrieve any and all available updates for your Computer/PC.

Step 4: Here, in this window, if you see any updates available for your PC/Laptop then download it and install them.

Step 5: After installing all the available updates for your PC/Laptop, reboot the computer.


Trick 3: Make Registry Database Healthy

Note: First of all, it is recommended to avoid this trick if you don’t have much knowledge about the registry database. OR create a backup of your registry database before applying this trick.

Step 1: Press Windows + R to open the run dialogue box and type REGEDIT then press Enter key to open the registry editor window.

Step 2: After it, you have to navigate to the below-given path:


HKLM\software\microsoft\windows nt\current version\profilelist


Step 3: Here you will see several branches, you have to open each key branch and see several values within on the right-hand Regedit pane. Search for the value called: profileimagepath

Step 4: If the value is “S-1-5-…” branch, go to the next entry.

Step 5: If any branch doesn’t contain the value called profileimagepath, then you  have to add one.

Step 6: add multi string value- right click on the blank space and choose New and then add Mult-string Value

Step 7: You will see that a new item is appeared with the name New Value #1. Type the New Value #1, so that it now reads profileimagepath.

Step 8: Now, exit from the registry editor Windows.

Restart your PC or Laptop and run the Windows Defender, it is hoped that your Windows Defender antivirus tool will start working normally.

[Solved] How to Fix Windows Defender Error Code 0x8050800c on Windows 10?
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[Solved] How to Fix Windows Defender Error Code 0x8050800c on Windows 10?
Apply the given solutions and Fix the Windows Defender Error Code 0x8050800c on Windows 10. All the given solutions are fully tested so don't worry about its working.
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