How to know the items that were unable to scan?

Avast Mac Security
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Hello, I am trying Avast for Mac

I did do a complete scan. Well I have 0 infections, but I have 45 “Unable to scan”.

  1. How to know the items that were unable to scan?
  2. Should I assume that perhaps some of these files that were unable to scan would be a potential virus? (That’s my main concern).
    I want assume they are protected files from the OSx by itself, but I am not able to see them in the final report.

Thank you

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