If, on opening a Pro Tools session it can’t find audio files:
1. an alert window opens to help you:
copy what I’ve done here ie. tick the boxes on the lower left part of this alert window
NB: The missing files aren’t in the Audio Files folder of the Pro Tools project you’re trying to launch, so if you ignore the alert window above, you’ll see greyed out tracks
3. to watch the process in action, ie. monitor Pro Tools looking for the files, after you’ve followed my advice in step 1, use the ‘Task Manager’ from the ‘Window’ menu:
Click on you Macintosh HD icon in the top of the left hand column (Sidebar) and search for each missing file. Drag each one to the ‘right’ Audio File folder when you find it.
If you still have no luck, the files may exist on another computer or memory stick, in which case you’ll need to search for them separately.