Cannot open the Outlook window. Check if you’ve configured Outlook to run in compatibility mode (either manually or by running the Troubleshoot Compatibility wizard).

Cannot start Microsoft Outlook, Cannot open the Outlook window Upon receiving this strange error, you might try to restart your system and check if the issue fixes itself.

Outlook Cannot Open a Text Email Attachment: Check Your Permissions on the Folder. If Outlook will not open an attachment and returns an error telling you to check your permissions, you have one ...