- This error can be caused by corrupt system files or conflicts with antivirus software.
- If nothing works out, reinstalling and re-registering the Windows Security app is the last option.
Fix 1: Repair and Reset the Windows Security App
Step 1: Press the Windows + I keyboard shortcut to open the Settings app.
Step 2: Choose Apps > select Installed Apps from the right pane.
Step 3: Click three horizontal dots next to Windows Security and choose Advanced options .
Step 4: Click the Repair button.
Once the process completes, you will see a checkmark next to the Repair button. Check if the problem is fixed. If not, click the Reset button to reset the Windows Security app.
Fix 2: Remove Third-Party Security App
Sometimes, third-party apps interfere with the Windows Security app, causing the error to occur. To confirm, try disabling the third-party antivirus program. Once confirmed, uninstall the app , follow;
Step 1: Open the Start Menu, type Control Panel , and press Enter .
Step 2: Choose Uninstall a program.
Step 3: Right-click on the third-party security app and choose Uninstall . Then, follow the on-screen instructions to complete the uninstallation process.
Are you still seeing the error message? If yes, reinstall and re-register the Windows Security app.
Fix 3: Reinstall and Re-Register the Windows Security App
Step 1: Launch the Start Menu, type Windows PowerShell , and choose Run as administrator from the right pane.
Step 2: Execute the following commands one by one.
Set-ExecutionPolicy UnrestrictedGet-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register “$($_.InstallLocation)\AppXManifest.xml”}Set-ExecutionPolicy restricted
