How to Fix “The Windows Security Center Service Is Turned Off”

Windows Security is an essential built-in protection system in Windows 11 that monitors antivirus status, firewall protection, account security, and other important security settings. However, some users encounter the warning message “The Windows Security Center Service is turned off” in the Windows Security app or system notifications.

When this issue occurs, Windows may stop monitoring security components properly, leaving the system vulnerable to threats or preventing security alerts from functioning correctly. The problem is usually caused by disabled services, corrupted system files, malware infections, registry issues, or conflicts with third-party antivirus software.

In this guide, we’ll walk you through several effective methods to fix the “The Windows Security Center Service is turned off” error in Windows 11.

How to Fix “The Windows Security Center Service Is Turned Off”

Before trying advanced troubleshooting methods, make sure your Windows installation is updated and that you are logged into an administrator account. It’s also recommended to check whether third-party antivirus software is installed on the system. Follow the methods below in order for the best results.

1. Restart the Security Center Service

The Security Center service may have stopped running unexpectedly.

1. Press: Windows + R
2. Type: services.msc
3. Press Enter.
4. Locate: Security Center
5. Double-click the service.
6. Set: Startup type = Automatic (Delayed Start)
7. Click: Start
8. Apply the changes and restart your PC.

This restores the core Windows Security monitoring service.

2. Restart Windows Security Services

Additional security services may also need to be running.

In the Services window, verify that these services are enabled:

• Windows Defender Antivirus Service
• Windows Defender Firewall
• Security Center

Restart them if necessary.

3. Remove Conflicting Third-Party Antivirus Software

Some antivirus applications disable Windows Security services automatically.

1. Open: Settings > Apps > Installed apps
2. Locate third-party antivirus software.
3. Uninstall it temporarily.
4. Restart your PC afterward.

After removal, Windows Security services usually reactivate automatically.

4. Run Windows Security Troubleshooter

Windows includes built-in troubleshooting tools for system problems.

1. Open: Settings > System > Troubleshoot > Other troubleshooters
2. Run available security or maintenance troubleshooters if listed.

This may automatically repair disabled security configurations.

5. Repair Corrupted System Files

Damaged Windows files may prevent security services from functioning correctly.

1. Open Command Prompt as Administrator.
2. Run:

sfc /scannow

3. Wait for the scan to complete.
4. Restart your PC afterward.

This repairs corrupted Windows system files automatically.

6. Run DISM Commands

If SFC does not fix the issue, repair the Windows image.

Open Command Prompt as Administrator and run:

DISM /Online /Cleanup-Image /RestoreHealth

Wait for the process to finish completely and restart the PC.

7. Check for Malware Infections

Malware may disable Windows Security services intentionally.

1. Boot into Safe Mode if necessary.
2. Run a full system scan using:
   • Microsoft Defender Offline
   • Another trusted antivirus scanner
3. Remove detected threats.

Some malware specifically targets Windows Security services.

8. Reset the Windows Security App

Corrupted Windows Security app data may trigger the warning.

1. Open: Settings > Apps > Installed apps
2. Locate: Windows Security
3. Open: Advanced options
4. Click: Repair

If necessary, use:

Reset

afterward.

9. Check Group Policy Settings

System policies may disable the Security Center service.

1. Press: Windows + R
2. Type: gpedit.msc
3. Navigate to Windows Security-related policies.
4. Ensure the Security Center is not disabled.

This method is mainly applicable to Windows Pro editions.

10. Install Windows Updates

Outdated Windows components may cause security service problems.

1. Open: Settings > Windows Update
2. Click: Check for updates
3. Install all available updates.
4. Restart your PC.

Updates often restore missing or broken security components.

Conclusion

The “The Windows Security Center Service is turned off” error is usually caused by disabled services, corrupted system files, antivirus conflicts, malware infections, or misconfigured Windows settings. Fortunately, most users can resolve the issue using methods such as restarting security services, repairing system files, resetting Windows Security, or uninstalling conflicting antivirus software.

By following the solutions outlined above, you should be able to restore normal Windows Security functionality and keep your Windows 11 system properly protected again.