Windows Defender Problem (Threat found, but not shown in Protection history)

Hello, I’m Virginia an independent advisor with 20 years of expertise in fixing my own & friends’ PC problems.

Try running these programs:
MBAM free: https://www.malwarebytes.com/mwb-download/
Eset online scanner: http://www.eset.com/us/online-scanner/
Adwcleaner: https://www.malwarebytes.com/adwcleaner/

If these find one or more infections but do not fully remove them it will be wise to register with a malware removal site to receive dedicated malware removal instructions, an expert will remain with you throughout the process until confirmation that your PC is 100% clean.
Malwarebytes virus/malware removal forum:
https://forums.malwarebytes.com/forum/7-windows...
Bleeping computer malware/virus removal forum:
https://www.bleepingcomputer.com/forums/forum22...

If these show you’re clean then do this:
Open the C folder & select show hidden devices under View, open ProgramData>Microsoft>Windows Defender>Scans>History>Service & delete all the files inside. Then scan with Defender again.
I’ve found sometimes Defender gets ‘confused’ & shows an old/remedied threat as new. Often this threat was found on an external drive which isn’t connected.

Disclaimer - This post contains reference to non-Microsoft websites and there may be ads on the page for products & services including products frequently classified as a PUP (Potentially Unwanted Product). Please thoroughly research any product / service advertised on the page before you decide to use them. Your discretion is very much advised.

Collection of similar problem: 

Windows defender keeps finding a threat. : techsupport (reddit.com)

28 April 2021

Windows Defender finds a threat every tim2e I run a quick scan, but - Microsoft Community

2 January 2020

Windows Defender finds 1 threat almost every scan. - Microsoft Community

4 May 2021

Windows defender Full Scan no threats found but says after that - Microsoft Community

27 June 2020

I'm seeing the exact same issue on my laptop when restarting and doing a scan, noticed this threat showing up since start of this month or so somewhere i think

Could this be some sort of bug or some actual malware? Nothing show's up in protection history for me either, after the system claims the action has been resolved...