While selectively deleting files from a backup set in the "Where" window, the task aborted and the files in the set can no longer be seen. I need to delete the backup from an external drive and then run a fresh backup that will place only the selected original files into the newly created backup set file. My concern in doing so is that the original files to be included in that backup set may contain a code that will prevent them from being backed up to the newly created backup set file. Is my concern correct? If so, what should I do to fix the currently corrupted backup file set?