And it found nothing.....

Desktop Intrusive Advert - Bottom Right - Page 2 - Windows 10 Forums

Thanks both.

The Dr. Web Cure It is running now. And it's the more serious underlying malware problem that worries me....

And I don't have Outlook installed.

I got exactly the same advert yesterday.

And like you I'm pretty careful.

I run Firefox with noscript plus every don't track me add on known to man.