https://answers.microsoft.com/en-us/protect/forum/all/windows-defender-identifies-the-same-pup-as-a/63f17794-3815-4784-b9cd-c6059c8e0828
If you have any malware, remediated by Windows Defender, that alerts repeatedly, this procedure applies to
it as well. In order to cleanup the malware completely, find the file in the "container file" in the Protection
History record, and delete the file that is described. If you can't find or access the file, run the Microsoft
Safety Scanner. It uses the same definitions as Windows Defender, and should remediate the file.
Then proceed to delete the Protection History info.
END EDIT.Windows Defender is defaulted to scan its own "Scans/History". Resulting in the discovery of the malware over
and over again. Even though, other scanners see no evidence of the malware on the PC. It doesn't exist!
Until Microsoft sees fit to fix this problem, you can prevent the repeating error indication, by deleting the
items that are described in Windows Defender Protection History. You can delete them by accessing their files,
that are located in C:\ProgramData\Microsoft\Windows Defender\Scans\History\Service.
In the "Service" folder, find and delete "Detection History".
Note: ProgramData is a hidden file. In order to access it, the "Hidden Items" option in "File Explorer" must be
checked. Find the "Hidden Items" check box under the "View Tab".
And, the first time that you access "Scans", you must select "continue", to obtain the permission.
Restart and try another scan. Notifications for the current malware should stop.
However, this program miscue will probably reoccur, when the next PUP / Malware is encountered.
Glen
