Windows 11 Security window is empty

Restart Windows Security Service​

• Press Win + R to open the Run dialog.
• Type services.msc and press Enter.
• In the Services window, locate Windows Security service.
• Right-click on it and choose Restart.
  

  Update Windows 11​

• Make sure your Windows 11 installation is up to date.
• Go to Settings > Windows Update and check for any pending updates.
  

  Run Windows Security Troubleshooter​

• Go to Settings > Update & Security > Troubleshoot.
• Run the Windows Security troubleshooter to identify and fix any issues.
  

  Perform SFC scan​

• Open Command Prompt as an administrator.
• Run the command:
  Code:

   sfc /scannow

• Allow the System File Checker to scan for and repair any corrupted system files.
  

  Use the Windows Security Standalone App​

• Open Microsoft Store.
• Search for Windows Security and install it as a standalone app if it's available.
  

  Reset Windows Security App​

• Go to Settings > Apps.
• Locate Windows Security from the list.
• Click on it and choose Advanced Options.
• Click Reset to reset the app.
  

  Reinstall Windows Security​

  If none of the above steps work, you may need to reinstall the Windows Security app. If the issue persists, there might be deeper system issues impacting Windows Security. In such cases, seeking assistance from Microsoft Support or a qualified Windows technician may be necessary to diagnose and resolve the problem.