Windows 10: Microsoft safety scanner says "Files Infected: 2" while scanning, but then "Scan completed...

Microsoft safety scanner says "Files Infected: 2" while scanning, but then "Scan completed successfully and no ... detected" when it reaches the end. What is going on?

:)

 

Microsoft Safety Scanner > Files Infected count

There's a bit of a UX problem with the scanner. As it is running it may encounter files that are suspected of being infected but indicate a count as: "Files Infected: XX"

This suggests the files are infected and apparently no list of these potentially infected files are provided.

1. Change the label to "Possible Infected Files"
   
2. Write to the msert log the list of possibly infected files for further review/action.
   

I say this as I let the tool run for over 3 hours, racking up over 20 "Files Infected". My computer was disconnected from the Internet during the scan. So I was surprised that the files in question were somehow "cleared" despite a lack of Internet connection.

From the log:

Results Summary:

----------------

No infection found.

Failed to submit MAPS report: 0x80072EE7

Failed to submit clean hearbeat MAPS report: 0x80072EE7

Microsoft Safety Scanner Finished On Sun Apr 30 13:20:56 2023

If the suspected files couldn't be submitted, then how were they cleared? Which files were suspected?

I appreciate the tool just cannot trust the results.

 

Microsoft Safety Scanner (64-bit) scanning showing 164 infected files however final scan results says 0 detected

Hi. I'm David, and I'm happy to help you.

Microsoft Safety Scanner may report that it found threats before the end of the scan and show no detection at the end. What happens is that it finds possible infections, but at the end of the scan, it does a full check on these items, and it may find that there is no infection.

This is normal behavior for Microsoft Safety Scanner.

Therefore, if at the end of the scan, no threats were reported, nothing was found by Microsoft Safety Scanner.

Feel free to ask back any questions.

 

Microsoft Safety Scanner (64-bit) scanning showing 164 infected files however final scan results says 0 detected

I just ran the second scan of "Microsoft Safety Scanner (64-bit)" on my computer (full scan which is about 17 hours scanning process long).

While it is scanning, the popup windows count says it has found a 164 detected infected files up until the near end however as soon as the scanning process finishes, it says 0 infected files found and the scanning report doesn't say much...

I am infected with a virus that deleted the scan results and stopped the cleaning process?

%SYSTEMROOT%\debug\msert.log

---------------------------------------------------------------------------------------
Microsoft Safety Scanner v1.391, (build 1.391.109.0)
Started On Wed May 31 21:11:19 2023

Engine: 1.1.23050.3
Signatures: 1.391.109.0
MpGear: 1.1.16330.1
Run Mode: Interactive Graphical Mode
---------------------------------------------------------------------------------------

About my pc:

Edition Windows 11 Home Single Language
Version 22H2
Installed on ‎5/‎10/‎2022
OS build 22621.1778
Experience Windows Feature Experience Pack 1000.22642.1000.0

64-bit operating system, x64-based processor