Quickly you can sort of delete your false patients by removing your "full" AC database folder and reoplace it with a new clean empty one. Download a copy of the program to an external harddrive or to your desktop and then copy the appropriate database folders you need to replace. So then you could do a one time import of you real patients from that other program if the two will talk to one another nicely. Have you officially bought AC yet? If yes, then I would call tech support and have them do the import with you for saftey's sake. But yes you can replace any of the folders that are full with empty ones so as to have a nice new clean empty AC. Anybody care to chim in here???