Thank you for responding and yes I am using CCC and have thought of this. I have tried deleting all snapshots, but the message remains. I am not using Time Machine at all. One very interesting thing that I noticed however is that when I install Pro Tools the message stops happening for a few scans, but then after using Pro Tools the message comes back. Very peculiar. Therefore I do not believe this message to be related to snapshots at all. I think it is merely coincidental that the message comes after checking snapshots.