Windows Defender blocked by group policy- What are the solutions?

Windows Defender blocked by group policy

Sometimes, when you start Windows Defender, it will not start and the error will appear on your screen with the following message:

” Windows Defender is blocked by group policy. For more information, contact the system administrator”

Obviously, when this message appears, you cannot start Windows Defender. In fact, this error is not an “error” this way, as the program and the operating system, in particular, are created in this way.

The cause of the error is that in addition to Windows Defender, third-party antivirus software also runs on your computer, and this is the antivirus program that disables Windows Defender to avoid software conflicts in your operating system.

Windows Defender blocked by group policy- What are the solutions
Windows Defender blocked by group policy

To eliminate this confusion, try the following methods to fix the error Windows Defender blocked by group policy:

#Method 1: Remove third-party antivirus software

The problem can be solved by simply uninstalling the anti-virus software so that only Windows Defender stays on your computer from protection. To do this, do the following:

  • Press the keys simultaneously win +w, type in the “Run” appwiz.cpl line and press Enter.
  • Find the antivirus program that is causing the problem, right-click it and choose “Delete.”
  • Confirm all requests if they appear on the screen.
  • After the removal process, restart the computer to confirm the changes

Now your Windows Defender should start quietly, and the error will disappear. However, if it’s still not starting, try the following:

  • Right-click on “Start” and choose “Control Panel” from the context menu.
  • Go to “Windows Defender”.
  • Ensure that Windows Defender is activated.
  • If this method did not help you, you can use the solution to the error problem through the Windows registry.

#Method 2: Modification in the Windows Registry

In some cases, the first method may not work, but do not worry, another method that should correct the situation because the error involves editing the Windows registry. Now we will explain everything that you need to do:

Windows Defender blocked by group policy regedit
  • Press Win + w, enter Regedit, and press Enter to launch the Windows registry window.
  • Then, go to “HKEY_LOCAL_MACHINE – Software – Policies – Microsoft”.
  • Select the “Windows Defender” section.
  • Double-click on the “Default” entry.
  • Set “value – 0”.
  • Click OK.
  • Then press the key combination Win + X and select “Control Panel”.
  • Go to the Windows Defender section and ensure it is activated.

If the above steps didn’t help you get the error when running Windows Defender, try these steps here:

  • Repeat the steps you used to open the Windows registry and follow the same path.
  • Select “DisableAntiSpyware”.
  • Double-click on the “Default” entry.
  • Set “value – 0”.
  • Repeat the steps to check Windows Defender and ensure that it is activated.

#Method 3: Local Group Policy

Windows Defender blocked by group policy local

Sometimes the problem may not be in Windows Defender and the system itself, but Windows Defender can be disabled through Local Group Policy. If the fault originated from this particular reason, it is not difficult to fix this situation. To do this, do the following:

  • Press the key combination Win + w, enter in the blank line GPEDIT.MSC and press Enter to open the Local Group Policy Editor.
  • Then, go to “Computer Configuration – Administrative Templates – Windows Components – Windows Defender”.
  • Double-click the “Windows Defender Shutdown” policy.
  • You should see a window called “Shut Down Windows Defender”. Ensure that the checkmark in this window is the opposite of the “unchecked” parameter.
  • Then click “Apply” and “OK”.

After completing the steps, try running Windows Defender and verify that an error has been fixed

#Method 4: Enable the Windows Defender service

Windows Defender blocked by group policy enable
Windows Defender Antivirus Enabled

If you do not have any antivirus software installed on your computer and are still unable to enable Windows Defender, there is a possibility that the service of this program may simply be disabled. In this case, you need to turn it on. To do this, do the following.

Often times, users are concerned with how to disable regular antivirus software in the new Microsoft “Top Ten” operating system. But over time, this trend weakens and people, on the contrary, begin to ask about its inclusion. Today we will only talk about how to start Windows 10 defender if it has been disabled and does not want to open it. Delete, as well as reinstall, our app is impossible, it means that you need to restore it.

Also Read: What is PAGE_FAULT_IN_NONPAGED_AREA error in windows 10?

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