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

When you use Windows Defender to scan viruses or just update Windows Defender, you may encounter various errors such as Windows Defender not updating, Windows Defender error code 0x80070422, Windows Defender error 0x6d9, etc. Today, we are talking about another error code – 0x8050800c.

Luckily, there are some solutions to this error code, and you can follow the 5 most effective solutions to get rid of this error. Before trying the following solutions, you can restart your PC and check if the error has gone. If not, please go on.

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Fix 1: Disable Periodic Scanning

Step 1: Press the Windows + I keys together to open Settings. Then, go to Update & Security.

Step 2: Go to Windows Security > Open Windows Security.

Step 3: Click Virus & threat protection. Then, click the Windows Defender Antivirus option part. Finally, turn off the periodic scanning.

Fix 2: Update Your Windows System

Step 1: Press the Windows + I keys together to open Settings.

Step 2: Go to Updates & Security.

Step 3: Click the Windows Update section, and click the Check for updates button to check if there are any new updates. Then Windows will search for available updates. Just follow the on-screen instructions to finish the process.

Fix 3: Uninstall Third-Party Antivirus

If you encounter the Windows Defender error code 0x8050800c, the culprit might be a conflict between Windows Defender and third-party antivirus software. So if you have installed one on your computer, it is recommended to uninstall it to fix the error.

Fix 4: Perform a Clean Boot

Step 1: Type msconfig in the Run box, and click OK.

Step 2: Then go to the Services tab. Check the Hide All Microsoft Services box.

Step 3: Now, click the Disable all button, and click Apply to save the change.

Step 4: Go to the Startup tab and click Open Task Manager.

Step 5: In the Task Manager tab, select the first enabled application and click Disable. Here you need to disable all enabled applications one by one. After disabling all programs, close Task Manager and click OK.

Fix 5: Run SFC and DISM

Step 1: Launch Command Prompt as an administrator.

Step 2: Type sfc /scannow and press Enter after the message appears. This process might take some time.

Step 3: Type dism.exe /Online /Cleanup-image /Restorehealth and press Enter.

Step 4: At last, type Exit to close the Command Prompt window.

Final Words

When you see the “Windows Defender error code 0x8050800c“message, do not panic. You can try the solutions one by one that I mentioned in this post. I hope your computer can keep secure and safe. To better protect your PC, it’s highly recommended to back up your PC with MiniTool ShadowMaker.