Five Methods to Fix Windows Defender Blocked by Group Policy Windows 10

Windows Defender is built-in software for malware protection on Windows systems. There may be a case where you see Windows Defender blocked by a Group Policy error when you try to access Windows Defender. Now, this can happen due to newly installed antivirus or malware on your system. It is an important security service provided by Microsoft since Windows 8 and is also available in your Windows 10.

Windows Defender helps you protect your system from viruses, spyware, and other malicious software. You don’t need an extra antivirus, Windows Defender does it all for you unless you need some extra security and protection. There are various reasons for Windows Defender This program is blocked by Group Policy Windows PC error problem and also some prospective solutions for This program are blocked by Group Policy Windows. Let us discuss some of those methods.

6 Methods to Fix Windows Defender Blocked By Group Policy:

In this article, we’ll take a deeper look at some of the reasons why Windows Defender might be blocked by a Group Policy error and how to fix it. It will definitely help you to fix Windows Defender blocked by Group Policy error and avoid any unexpected situations due to malware and virus-affected programs and applications.

1. To Restart The Computer:

To Restart The Computer

This is one of the most common steps you can take to get rid of Windows Defender blocked by a Group Policy error that causes Windows Defender not to function or start as expected. If you have uninstalled any security-related application or finished updating some different apps or Windows operating systems, a simple reboot can fix this problem.

To restart your Windows PC or laptop,

1. Click on the Start menu icon on the taskbar or press the Windows key on the keyboard to open the Start menu.

2. Click on the Power icon, and then from the menu that expands, click on Reboot. Do not power off the machine or press and hold the power button now.

3. When the machine starts, try opening Windows Defender from the Settings app or Control Panel and see if you still get Windows Defender Blocked by Group Policy Error.

2. Uninstall Other Third-Party Anti-Virus Or Security Software:

Uninstall Other Third-Party Anti-Virus Or Security Software

Installing other third-party anti-virus or security software will definitely disable the built-in security app Windows Defender. If you want to use Windows Defender as your primary security application, you should uninstall the other anti-virus program first.

1. Go to the Settings app by clicking the gear icon in the Start menu.

2. Go to the Apps option in the card menu and click on it to open it. Scroll down until you see a Third-party application installed on your system. Click on it to open a menu with uninstall option.

3. Click on Uninstall and complete the uninstall process through the dialog box that pops up. If there is an option to keep any files we want, decline it and delete all files related to the software to resolve any conflicts.

4. After successful uninstallation, reboot your system.

5. Now open Windows Defender. Go to Settings, then the last option is Updates and Security. In the left navigation pane, select Windows Security and open Windows Defender by clicking the Open Windows Security option. Try enabling Windows Defender and see if you can start it without Windows Defender being blocked by the Group Policy error.

3. Turn On Windows Defender Through Settings:

Turn On Windows Defender Through Settings

You can fix Windows Defender blocked by Group Policy error by turning on Windows Defender through Settings. Sometimes, real-time protection may be disabled by some software or virus. Let’s see how to turn on Windows Defender through settings.

1. Press Windows Key + I to open Settings, then click on Update & Security.

2. Click Windows Security in the left panel, and then click Virus & Threat Protection under Windows Security.

3. In the ‘Virus & Threat ProCheck For Virustection’ window, click on Manage settings as shown in the screenshot below.

4. Toggle Real-Time Protection to ‘On’.

4. Check For viruses:


As mentioned above, a virus can also turn off Windows Defender and cause you trouble. Hence, it is recommended to check your system for viruses and malware using some trusted third-party antivirus. After scanning and removing virus-infected files, check if you don’t see Windows Defender blocked by group policy.

5. Run SFC Utility:

Run SFC Utility

You can use the SFC utility to fix Windows Defender blocked by group policy error. The SFC utility is used through the command prompt.

1. Type cmd in the search menu, right-click Command Prompt, and click Run as Administrator from the context menu.

2. Type SFC /scannow in the command prompt and press Enter.

The scanning process may take some time. After scanning, check if Windows Defender is turned off by Group Policy.

6. Check For Conflicting Programs:

Check For Conflicting Programs

Sometimes malware keeps Windows Defender switched off. And prevent you from trying to switch on no matter how hard you try. Therefore, the ideal solution is to run another anti-virus to eliminate the infection. Also, some third-party anti-virus can stop Windows Defender while running. In this case, you need to find an anti-virus that works well with Windows Defender.


So, above here are solutions for you to get rid of this kind of windows defender. This program has been blocked by Group Policy Windows 10 error code problem. We hope this error guide will undoubtedly help you to recover permanently and comprehensively from this error on your Windows PC.

Leave a Comment