3 Ways to Fix ‘You’ll Need a New App to Open This Windowsdefender Link’ Error in Windows 11

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 Unrestricted

Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register “$($_.InstallLocation)\AppXManifest.xml”}

Set-ExecutionPolicy restricted