Windows 10: After running a full scan, some threats were reported. "Taking action" has now been in...

i found some threats after i wanted to format one of my pendrive. After a full scan I found a bunch of threats, some high and one severe. one is trojan and others are hacktool. i tried twice to run the actions suggested by security. But its just taking very long

:)

 

Current Threats found but cannot Start Actions!

"Current Threats found but cannot Start Actions!" Windows Security recognizes a threat after running a full scan and suggests to "Start Actions". However, when I select the button, no options appear to handle the threat! Is this a dead-end situation? Is there nothing else to do?

I suspect it may be a crypto mining app (PUA). The computer has been locking up at random times, so for me, this is no minor issue, but I cannot find a solution how to remove the malicious unwanted app from running or executing itself in the background.

What further steps or actions can I take to remove this unwanted app?

/s/

 

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?

 

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?