Using Classic Outlook on Windows for personal email, calendar, and contact management
i have the same issue. And the instructions provided by MS do not apply to Windows 11. As others have said, the only options I have are Repair or Uninstall.
I still notice, however, that in the new Outlook, I still see the toggle switch in the top-right of the application, which would indicate to me that there is still the option of using the "classic" (old) OLK.
Is there a registry hack somewhere? I no longer want to use the old version. In addition, i have gone to the settings and made sure that all email-related file types are associated with the new version, but that did not help.
This is clearly an issue for many people. I am happy to do further troubleshooting if MS needs help.