Yes, it's grimefighter. But, the pop up I clicked on was different, from what I remember. No graphics, just a couple lines of text, I think. I know it said Avast, something about config, but I didn't really see it. Never would have clicked yes, but it came up when I expected another popup about deleting emails, and boom.
Running Recuva again now. Ran it once, when I came back to the computer, it had disappeared off the screen, no results.