Windows Security is a great tool from Microsoft to protect your system from malware and antivirus. But what if the same tool crashes! Yes, recently, some users have been complaining about the “Windows Security not Opening” issue on their Windows 11. In the opinion of a few users, Windows Security opened slightly and then automatically disappeared unexpectedly.

Switching to a third-party antivirus app is an alternative solution in this case, but before you make your decision, you have plenty of things to do to escape from the “Windows Security not Opening” issue. Anyway, in this article, we have listed some reliable solutions to resolve the same issue quickly, so go through it without wasting your time. Let’s have a look.

Fix 1: Reset Windows Security:

The first solution to resolve the “Windows Security not Opening” issue on Windows 11 is resetting the Windows Security tool. To do so,

  • Firstly, press Windows + I altogether to launch the Settings app.
  • Then select the Apps and click on the Apps and features option.
  • Now from the list of apps, select Windows Security.
  • And click on the three vertical dots beside the same.
  • Then select the Advanced options and click on the Reset button from the next screen.
  • Finally, restart the system and check now the app is working fine or not.

Fix 2: Restart Security Center Service:

Sometimes simply restarting the Security Center service might help you resolve the “Windows Security not Opening” issue on Windows 11. To do so,

  • Firstly, type Services in your search box and open the top result.
  • Inside the Services window, scroll down and select the Security Center service.
  • Right-click over it and select the Restart from the drop-down menu.
  • Finally, reboot your system and see the app is working or not.

Fix 3: Restart Windows Security Service:

Another solution to tackle the “Windows Security not Opening” issue on Windows 11 is restarting the Windows Security service. This trick helped in the case of a few troubled users. To do so,

  • Firstly, type Services in your search box and open the top result.
  • Inside the Services window, scroll down and select Windows Security.
  • Right-click on it and select the Properties from the sub-menu.
  • In the Properties window, set Startup type as Automatic and Service status as Running.
  • Finally, restart the system and see the app working without any issue.

Fix 4: Run SFC Scan:

If any system files get missing/corrupted for no apparent reason, then also you will encounter the “Windows Security not Opening” issue on your Windows 11. The best and most effective solution here is running the SFC Scan to repair damaged/missing files. To do so,

  • Firstly, type cmd in your search box and launch the Command Prompt window from the top search result. Here you need to ensure open it as Run as Administrator.
  • Inside the black screen, copy then paste or type the following command and press Enter,

Sfc /scannow

  • Finally, restart the system and check now the app is working or not.

Fix 5: Run DISM Scan:

If the above solution does not fully help you, you will need to run a DISM scan to restore those repaired files. To do so,

  • Firstly, type cmd in your search box and launch the Command Prompt window from the top search result. Here you need to ensure open it as Run as Administrator.
  • Inside the black screen, copy then paste or type the following command and press Enter,

DISM /Online /Cleanup-Image /CheckHealth

DISM /Online /Cleanup-Image /ScanHealth

DISM /Online /Cleanup-Image /RestoreHealth

  • Finally, restart the system and check now the app is working or not.

Fix 6: Disable Third-Party Antivirus:

If you have activated any third-party antivirus program in your Windows 11, the Windows security tool may not work on your system. Generally, the Windows 11 system does not allow two antivirus programs to run simultaneously. So, disable the third-party antivirus quickly and see the result.

Fix 7: Update Windows:

If your Windows system is not up to date, you may have issues with Windows Security. In this case, you need to update your system and check if the app is working properly. To do so,

  • Firstly, open the Start menu and click on the Settings app from the list.Windows 11 update
  • Then select the Windows Update from the Settings menu and click on the Check for updates button.
  • Finally, restart the system and check now the app is working or not.

Fix 8: Close Background Apps:

If you are getting the “Windows Security not Opening” issue on your Windows 11, then you need to disable all the unwanted apps running in the background. Open the Task Manager window and force stop all the unnecessary apps running in the background.

Fix 9: Clean Boot your System:

If any of the above solutions do not help you to resolve the discussed issue, then you need to clean boot the system and see the result. To do so,

  • Firstly, type System Configuration in the search box and launch the top result.
  • Then choose the Services tab and tick the checkbox beside Hide all Microsoft services.
  • And click on Disable all button and press OK.System Configuration
  • Further, move on to the Startup tab and click on the Open Task Manager link.
  • Inside the Task Manager, select the Startup tab and disable all the services from the list.
  • Then see now the app is working fine or not. If yes, then go back to System Configuration->Services-> enable all the services.
  • Now select recently installed programs and remove them from your system.

So, these are all about the “Windows Security not Opening” Issue on Windows 11 and its fixes. However, if you have any queries or doubts after reading this article, then please leave a comment in the below-given comment box.