So, I uninstalled MS Office from the internal SSD on my Dell Latitude. Then I cleaned the registry and deleted all Office folders. Rebooted the system and reinstalled Office.
Word, Excel, and PowerPoint appeared neutral upon startup.
Then I started Outlook and prepared myself to enter accounts, mailboxes, etc. But Outlook started with all the parameters as before. And the OK/Cancel buttons were missing from the Send/Receive transmission window.


Where the hell did Outlook get the previous data from and configure it on its own? I'm taking this very personally and am furious.
I'd better throw away the Latitude.