Since 1 and 2 make no sense to me a PC person or possibly strange camera terminology (I have never seen a file that starts with DBT) I cannot help.
But on 3, yes, deactivate and run an Adobe cleanup script before reinstalling and reactivating.
Thank you, I will call Adobe tomorrow for support.
This may sound dumb but How do you run "Adobe cleanup script? I have a mac and have run the repair.
thank you John!