windows security not working

If your Windows Security is not working and shows that it is blocked, you can try the following steps to resolve the issue:

1. Restart Your Computer: Sometimes, a simple restart can fix issues with Windows Security.
2. Check Windows Services:
   • Open the Run dialog by pressing Windows + R, type services.msc, and press Enter.
   • Look for the Windows Defender Antivirus Service. Ensure that its Startup Type is set to Automatic. If it is not running, right-click on it and select Start.
3. Remove Third-Party Security Software: If you have any third-party antivirus or security software installed, it may conflict with Windows Security. Uninstall any such programs and restart your computer. Note that you may need to use a cleanup utility to completely remove some security applications.
4. Check for Updates: Ensure that your Windows is up-to-date, as updates can fix bugs and improve security features.
5. Use Windows Troubleshooter: You can run the built-in Windows Troubleshooter for security settings to identify and fix issues automatically.

If these steps do not resolve the issue, you may need to contact Microsoft Support for further assistance.

References:

• Troubleshoot Windows Defender or Endpoint Protection client
• Modern apps are blocked by security software when you start the applications on Windows 10
• Integrated Unblock screen not displayed when smart card PIN is blocked
• How Windows Security works with Windows security features
• What was new in RS5 Windows 10 Insider Preview Builds