Windows 11 Windows Security options not opening

Reenable Windows Security Features​

1. Use PowerShell to Reinstall Windows Security:
   • Open PowerShell as an administrator and run the following command to reinstall Windows Security: Get-AppxPackage *windowsdefender* | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}.
   []Restore Windows Security Settings:
   • Go to Settings > Update & Security > Windows Security > Open Windows Security. Check if this method allows you to access Windows Security properly.
   []Run a Full Antivirus Scan:
   • Use an external antivirus software to perform a full system scan to ensure your system is free from malware or unwanted programs.
   []Disable Untrusted Third-Party Software:
   • Identify the recently installed software that caused the issue and consider uninstalling it from your system.
   []Check Firewall Settings:
   • Verify that the Windows Firewall is enabled. Go to Control Panel > System and Security > Windows Defender Firewall to ensure it's turned on.
   []Run SFC Scan:
   • Use the System File Checker tool in Command Prompt to scan and repair corrupted system files. Open Command Prompt as an administrator and run sfc /scannow.
   []Perform a System Restore:
   • If you have a restore point created before installing the problematic software, perform a system restore to revert your system to a previous state.
   []Check for Windows Updates:
   • Ensure that your Windows system is up to date by checking for and installing the latest updates.
   []Contact Support:
   • If the issue persists, contact Microsoft Support or consult with a trusted technical professional for further assistance. By following these steps, you should be able to address the issues with your Windows Security settings caused by the software you installed.