How to Fix Windows Security Stopped Working on Windows 11?

Windows Security is an essential software that helps to protect your computer from various security threats. However, what happens when this crucial software stops working on your Windows 11 PC? This issue can be frustrating and leave you vulnerable to cyber-attacks. In this blog post, we will explore how to fix Windows Security stopped working on Windows 11.

Understand the issue

Before we dive into the solutions, it's essential to understand what Windows Security is and its importance. Windows Security is a built-in app in Windows 11 that protects your PC from various security threats, including viruses, malware, and other online threats. When Windows Security stops working, you may experience issues like the inability to scan for threats or update virus definitions.

The symptoms of Windows Security stopped working on Windows 11 include error messages, windows freezing or crashing, and an overall sluggish PC performance. The possible causes of this issue include malware infections, corrupted system files, outdated software or drivers, or conflicts between Windows Security and other software.

Solutions to fix Windows Security stopped working on Windows 11

Solution 1: Restart Windows Security

The first step to fixing Windows Security stopped working on Windows 11 is to restart the app. To do this, open the Windows Security app, click on the three dots on the top right corner of the screen, and select "Settings." Then, scroll down to the "Troubleshoot" section and click on "Other troubleshooters." Finally, select "Windows Security" and click on "Run troubleshooter."

Solution 2: Run the Windows Security Troubleshooter

If restarting Windows Security didn't fix the issue, you can run the built-in Windows Security troubleshooter. To do this, go to your Windows settings, select "Update & Security," and click on "Troubleshoot." Then, select "Windows Security" and click on "Run the troubleshooter."

Solution 3: Check for Windows updates

Sometimes, issues with Windows Security can be caused by outdated software or drivers. Therefore, it's essential to check your Windows updates and ensure that your system is up to date. To do this, go to your Windows settings, select "Update & Security," and click on "Windows Update." Then, click on "Check for updates" and install any pending updates.

Solution 4: Run a malware scan

Malware infections can also cause issues with Windows Security. Therefore, it's essential to run a malware scan on your PC using reliable antivirus software. Be sure to update your antivirus software's virus definitions before running the scan.

Solution 5: Reset Windows Security settings

If none of the above solutions work, you can try resetting Windows Security settings. To do this, open the Windows Security app, click on the three dots on the top right corner of the screen, and select "Settings." Then, scroll down to the "Advanced settings" section and click on "Manage settings." Finally, click on "Restore settings to their default values."

Solution 6: Reinstall Windows Security

If all else fails, you can try reinstalling Windows Security. To do this, open the Windows PowerShell app as an administrator and type the following command: "Get-AppxPackage *windowsdefender* | Remove-AppxPackage." Then, restart your PC, and Windows Security will be reinstalled automatically.

Windows Security is a crucial software that helps protect your PC from various security threats. However, when Windows Security stops working on Windows 11, it can be frustrating and leave you vulnerable to cyber-attacks. By following the solutions outlined in this blog post, you can fix Windows Security stopped working on Windows 11 and ensure that your PC is adequately protected.