

You need to remove the file(s), overwrite with new data, then remove and repeat multiple times. Unless that file has been overwritten multiple times already, you can recover it with a click of a button. For example: "Recuva" from CCleaner offers file recovery from that. Deleting a file or merely formatting a drive is also recoverable. For example: "EaseUS Partition Master" provides Partition Recovery Wizard to help you recover deleted or lost partitions with ease. Deleting a partition is still recoverable. Just because that guy does, doesn't mean you have to. This doesn't have the limitations of FAT32, plus performance is faster. DONT use FAT32, use NTFS (which it probably already is). To avoid confusion for the topic owner and to get back on topic.
