Re-register the Mail and Calendar app for Windows 11/10 and check if you can launch it or not. To re-register the Mail and Calendar app, you have to launch Windows PowerShell as an administrator ...

If your Mail app is not working or opening on Windows 11/10, it might be due to corrupted or infected system files. Hence, you can perform SFC and DISM scans to fix this issue.

But developers have only been able to submit Windows 10 apps to the Windows Store since July 29, so plenty more should be on the way. Yahoo Mail had 225 million monthly active users as of May.

The new Outlook is available for Windows and macOS and allows you to manage your emails, contacts, and appointments in a single app in Windows and macOS. The free Outlook is definitely worth a look.