Method 4 – Trying the official Windows Troubleshooter I have listed the procedure to reregister apps in windows in a few simple and easy steps below, for you to followĢ- Click on the Search bar, and search for cmd.ģ- Right click on command prompt from the results and run it as Administrator.Ĥ- Enter the following command PowerShell -ExecutionPolicy Unrestricted -Command '& 'Ĭlose the powershell and register the mail app again, once the command finishes running.
Note: Make sure you have closed the Mail app before following the below listed steps.
