msc in the Run dialog box and click OK to open the Local Group Policy Editor.

Press the Windows Key + R, type in gpedit.

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To fix this issue follow the steps below: Method 1: Enabling Windows Defender Using the Local Group Policy Editorīefore you proceed with this method, note that the Local Group Policy Editor is only available in Windows Enterprise and Pro Editions.

Method 5: Deleting Conflicting Registry entries.

Method 4: Enabling Windows Defender From the Registry.

Method 3: Restart the Security Center Service.

Method 2: Remove Existing Anti-Malware Software.

Method 1: Enabling Windows Defender Using the Local Group Policy Editor.

You can also fix this by turning it on with the Local Group Policy Editor or applying a registry tweak. This error is largely fixed by asking your system administrator to enable Windows Defender via Group Policy. In such a condition, when you try to enable defender, you’ll get the error as shown in the image above. In other cases, if you’ve installed a 3rd party antivirus, it is like to block Defender and the block may remain active even if you’ve uninstalled the application. When trying to enable Windows Defender, you may get the following error: ‘This app is turned off by group policy’ and this is caused by two main reasons: If your PC is part of a domain and the domain controller assigned some policies, Windows Defender may get blocked. This built-in security suite is enough to provide primary protection for your PC and also keep you safe online.

There is no need to install any anti-malware application on Windows 8 and newer versions of Windows, since Windows Defender is installed by default.

Windows defender antispyware