How to Repair Windows Defender Error Code 0x8007139F on Windows 10 PC

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  1. Download and install the software.
  2. It will scan your computer for problems.
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Windows Defender error 0x8007139f does not allow you to open programs downloaded to your computer, as well as other programs with security errors in Windows 10/11.

For the Windows 10/11 operating system, the errors are still present on the computer, even though Microsoft representatives are constantly improving it with updates. Every new Windows update always brings different errors, and error 0x8007139f occurs in the recently updated version of Windows.

Nowadays, Windows has many options to solve the 0x8007139f errors on your computer. Here, we will explain in detail how to handle Windows Defender error 0x8007139f on Windows 10/11 computers.

What causes Windows Defender error code 0x8007139F?

  • This problem occurs when a Windows update or Defender definition update corrupts the Windows Defender files during the update.
  • Another important reason that seems to be the true cause of this problem with Windows Defender is that it conflicts with other installed security software. This conflict causes the Defender program to stop launching.

How to eliminate Windows Defender error code 0x8007139F?



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Turn off real-time security protection

  1. Go to the notification area on the taskbar and select Windows Security.
  2. When the page opens, click on the Virus and Threat Protection category.
  3. Then select the Manage Settings option under Virus and Threat Protection Settings.
  4. In the next window, turn off the switch for real-time protection and click Apply, then OK.
  5. After completing this method, reboot the system.

Start the System File Checker command

  1. Click in the search box and type Command Prompt.
  2. Right-click on the best result and select Run as administrator.
  3. When the UAC prompt appears, click Yes to allow access.
  4. At the extended command prompt, type the following code and press Enter at the end.
    sfc/scannow
  5. This process takes time, so wait accordingly. Reboot the system immediately after the scanning process is complete.

Performing a DISM scan

  1. First, press the Windows and R keys together to launch the Run dialog box.
  2. Type cmd in the text box and press Ctrl+Shift+Enter together to open the command prompt as an administrator.
  3. At the UAC prompt, click Yes to allow this access.
  4. On the extended command line, copy the following code and press Enter to execute it
    DISM /Online /Cleanup-Image /RestoreHealth
  5. Do not interrupt your computer for about 20 minutes, as this is the maximum time required to complete this task.
  6. Then reboot the system and check whether the error code Windows Defender 0x8007139f remained during the scan.

Modify the power settings

  1. Go to Cortana, type Power, and Sleep Settings, and click.
  2. In the right window, go to the “Related Settings” category and select “Advanced Power Settings”.
  3. Here, under “Hide Supplemental Plan”, click on Change Plan Settings and reset the Turn Off Screen option.
  4. Then click on the Put computer to sleep drop-down options and select Never.
  5. Finally, click Save changes to confirm your changes.

Disabling a third-party antivirus application

  1. Click the Win and I logo to launch the Settings app.
  2. On the new page, click the Apps category in the left column and then Apps & Features.
  3. Now go to the right area, scroll down and find the antivirus program you have installed.
  4. Once you find it, click on it and click on Uninstall.
  5. A new dialog box will appear, click on Uninstall to confirm the changes.
  6. After completing this process, restart your system and check if Windows Defender is working properly or not.



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Frequently Asked Questions

Error 0x8007139f usually appears with the message "The group or resource is not in the correct state to perform the requested operation". This problem occurs when a Windows Update or Defender Definition Update corrupts Windows Defender files during an update.

This problem occurs when Windows Update or Defender Definition Update corrupts Windows Defender files during the update. Another important reason that seems to be the true cause of this problem with Windows Defender is that it conflicts with other installed security programs. This conflict causes the Defender program to stop launching.

  1. Go to the notification area on the taskbar and select Windows Security.
  2. When the page opens, click on the Virus and Threat Protection category.
  3. Then select Manage Settings under Virus and Threat Protection Settings.
  4. In the next window, turn off the switch for real-time protection and click Apply, then OK.
  5. After completing this method, restart your system.

  1. Tap the Win and I logo to launch the Settings app.
  2. On the new page, click the Apps category and then Apps & Features in the left column.
  3. Now go to the right-hand area, scroll down and find the antivirus program you have installed.
  4. Once you find it, click on it and click on Uninstall.
  5. A new dialog box will appear. Click Uninstall to confirm the changes.
  6. After completing this process, restart your system and check whether Windows Defender is working properly or not.