Files that exist and are in use may get falsely reported as
unused. What's the filetype?
I have never seen it report a file that does not exist.
Perhaps a file deleted from the project but not deleted via Windows
Explorer but not a file that is not in Windows Explorer.
That's not to say I don't believe you, just that I have never
known that.
My first step would be to take a copy of the project and
delete the CPD file from it to see if that tidies things up.
Try that and post back.
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