How To Fix Windows Defender is deactivated by Group Policy

How To Fix Windows Defender is deactivated by Group Policy – Windows Defender is a default Anti-virus tool on Windows 10 meant to protect the computers from various sort of threats. Its functioning is good enough and you don’t require any third-party antivirus software to protect your system. On the off chance, Windows Defender may fail to work due to Group Policy. This may happen with any user but you don’t need to worry about it as we have possible fixes for it.

How To Fix Windows Defender is deactivated by Group Policy

If you see a message “Windows Defender is turned off by group policy” on a pop-up window then, you need to enable this by going to Group Policy Editor. Let’s understand the procedure in details:

Check if Windows Defender is disable in Settings

First of all, check if Windows 10 is disabled in the Settings application. Press Windows + I key on the keyboard to open the Settings options. Navigate to Update & Security option on the Settings window.

Head to Windows Defender from the menu, then click on Open Windows Defender Security Center. Apart from this, move towards Virus & threat protection and then select Virus & threat protection settings at the bottom. Locate Real-time Protection option and then activate this option. If this doesn’t work, navigate to another option.

Activate Windows Defender using Group Policy

Move to Run Command box by pressing Wind + R key on the keyboard. Also, make sure that you are logged in as an Administrator. Now, type “gpedit.msc” into the box and move to Local Computer Policy> Administrative Templates> Windows Components> Windows Defender Antivirus.

On the right side, double click on Turn off Windows Defender Antivirus and then move to Properties box. Click on Not Configured option followed by OK button. Reboot your PC to see the changes. If it works, then great. If not, head to the next method.

Alter the Registry to turn on Windows Defender

Press Windows + R button to launch Run command box. Type regedit into the box and hit enter key. It will launch the Windows 10 registry editor. Locate the following: “HKEY_LOCALMACHINE\SOFTWARE\Policies\Microsoft\Windows Defender” and if you see DisableAntiSoftware key, remove it.

This should have fixed your issue. if not, there is one more option i.e. turning on Windows Defender using the command line. It can be done as follows:

  1. Press Windows + S button on the keyboard to enter Powershell. Make a right-click on Windows Powershell from the list and proceed by clicking on Run as administrator.
  2. When PowerShell opens, enter to Set-MpPreference-DisableRealtimeMonitoring 0 and then hit Enter key.

Once it is done, the Windows Defender will be activated and the problem will be solved. Users can also try another method by using Command prompt and modifying registry. But, this option is easy and will work for sure.

Updated: February 19, 2019 — 10:21 am

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