False Positive on removable (removed) media

I see where to report a false positive but that's not really the main issue for me.

 

I am continuing to get a popup from NIS telling me Norton Internet Security has detected threats that require your attention. Then points to Trojan.ADH Removal failed - Access Denied.

 

This points to a file that was on an ISO I loaded using Daemon Tools. The image has been long removed (it points to the G: drive & even when I change the media in the G: I still get this warning later). The virus doesn't appear to have spread (it was a false positive to begin with) & every time I tell it to process it comes back with the same result because it couldn't remove the file anyway (it's on a Read-Only media as far as the system is concerned).

 

So how do I put this on an exception list? or remove this particular alert?