If you get Your Outlook data file cannot be configured error when opening Microsoft Outlook and your email account, see this post for the fixes.

Reports claim Outlook Classic is crashing if users open 60+ emails at once Avoid opening that many or use a workaround that might affect your entire system Microsoft is investigating the issue, ...

If the new Outlook app is stuck on the Getting Outlook ready screen, you should first restart the computer and router and see if that helps. More tips here.

Affected users have reported that after upgrading to Windows 11 24H2, they receive the following error: "Cannot Start Microsoft Outlook. Cannot Open the Outlook Window.