Windows 10: Microsoft Defender Scans Say One Threat Found And Took Action But I Cannot See It In...

Half of my windows defender scans say that there is one threat found and taken action but I cannot see what happened, it does not show in history or allowed threats, when I click on the message or click on protection history it is empty.

:)

 

Windows Defender keeps taking action on nonexistent threats on nonexistent scans

I have a laptop (Dell Inspiron 3541) running Windows 10 v1803. Recently, I have been getting notifications from Windows Defender saying threats were found and removed on scnas that didn't happen.

Some of the notifications are:

and

When I go to Windows Defender, it doesn't show any threats found - nor does it even show a recent scan. For example, I got one of the above notifications today, and this is what Windows Defender showed.





I tried running a scan, but the ETA was 4 hours, then 20, then 70, and still kept going up.

Is there a way I can find out what the "threats" are? Or make it stop sending these unnecessary notifications?

 

'windows defender successfully took action on 1 threat'

I get a notification that 'windows defender successfully took action on 1 threat' but I am not able to see what the problem or threat was that it took action on. Advice?

 

Defender finds a threat but doesn't take action

I ran a full scan and defender seems to have found a threat but when I say to fix it, it runs forever saying it is "taking action on the threats". When I select "See threat results" it shows no threats. Did it or not find a threat?