Windows Defender Bug

Windows Defender Bug

Having Windows Defender as the built-in antivirus program on your Windows computer is an advantage over installing third-party antivirus programs. But sometimes, a system bug could cause issues with the Windows Defender program and make your device vulnerable to threats. To fix the Windows Defender bug issue, we have provided a few solutions below.

Update Windows Defender

  • Step 1:On your Windows computer, open the Start menu and click the Settings icon to open Windows Settings.
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  • Step 2:Alternatively, press Windows + I to open Settings.
  • Step 3:Click the Update & Security tab in the Settings window.
  • Step 4:Select the Check for updates option and see if the Security intelligence Update for Microsoft Defender Antivirus title is available in the list of updates.
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  • Step 5:Install the required update and restart your computer.
  • Step 6:If the updates are not available for Windows Defender, implement the next solution.

Restart the Security Center service

  • Step 1:First, launch the Run command box by pressing the Windows + R shortcut keys.
  • Step 2:Type ‘services.msc’ in the text field and click the OK button to open the Services window.
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  • Step 3:Locate and select the Security Center service from the available list.
  • Step 4:Right-click the service and select the Restart option.
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  • Step 5:Close Windows Services and restart your computer to check if the Windows Defender bug is fixed.

Disable Windows Defender

  • Step 1:Open the Settings app and click the Update & Security tab.
  • Step 2:Select the Windows Security tab from the left-side panel.
  • Step 3:Click the Virus & threat protection tab and select Manage settings.
  • Step 4:Toggle off the Real-time protection button. This will disable Windows Defender.
  • Step 5:Next, toggle on the button to re-enable Windows Defender.
  • Windows Defender Bug
  • Step 6:Alternatively, you can enable Windows Defender from the registry. To do so, launch the Registry Editor from the Run command.
  • Step 7:Navigate to the HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender folder path.
  • Step 8:Double-click the DisableAntiSpyware entry and set the value data to 0.
  • Step 9:Click OK and close the Registry Editor window.
  • Step 10:Check if the Windows Defender bug is fixed.

If the problem remains unsolved, contact us for assistance in resolving it.