Windows Defender Detects a Legitimate System File as a False Positive (Trojan:Win32/...)

Hi, I would be careful before excluding it, even if it looks like a normal Windows file.

Good checks:

1. Confirm the exact file path. A real system file in the wrong folder can still be malware.

2. Check the file signature and publisher.

3. Run Windows Update and Defender intelligence updates.

4. Run an offline Microsoft Defender scan.

5. Submit the file to Microsoft Security Intelligence if you believe it is a false positive.

I would avoid adding a permanent exclusion until Microsoft confirms it or the detection clears after updated definitions. Exclusions can hide the problem if the file has actually been replaced or tampered with.