Defender detects non-existing viruses while downloading files from Internet

  • Thread starter Thread starter KrisL3
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KrisL3

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When I select a file in my browser to download e.g. FileName.pdf and select “Save it” a msg pops-up “FileName.pdf contained a virus and was deleted”. I can open the FileName.pdf from within the Edge though and save it to the disk. All files i.e. text, pdf, exe etc. are affected.

I use MS Defender as the anti-virus program. When I scan the FilenName.pdf with the Defender it comes up clean. Trying to debug the problem I tried downloading the files with other browsers. The browsers Internet Explorer and Chrome act the same i.e. prevent downloading with the same virus scan message. However, Firefox downloads the files with no problem. So for 4 browsers that I tried only Firefox allows the file downloads. All browsers work well otherwise and do not indicate other issues.



In the Windows Internet Properties in the Security Settings window the slot

Downloads>File Download” Is set to Enable.

Further down the slot “Miscellaneous>Launching applications & unsafe files” is set to Prompt.


The MS Defender has never detected a virus on my computer. It appears it doesn’t mean much as obviously there is some problem either in the Defender itself or some settings telling it to act that way.

Has anybody out there been faced with a similar problem and solved it?

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