Choose 'Quit' so that SAM Virus Clinic exits from the program after the macro scan if no infected files are found.
Choose 'Scan & Eject, if no infections' to place SAM Virus Clinic in Scan & Eject mode when the macro scan is finished if no infected files were found during the scan.
Choose 'Stop' so that SAM Virus Clinic returns to normal operation when the macro finishes scanning.