Hmm, I just logged into my Outlook.com account and don't get that.
Quote:
|
It appears when using Edge, Explorer or Chrome. It appears on Windows 10 version 1809 and 1903
|
That means 99.9% that it's the Outlook.com site doing this, not anything on your side.
I don't see anything relevant on a quick scan of Outlook.com's Settings, but you may find something there.