What are the best whole hard drive encryption programs for external USB hard drives?
I have several large (1 TB capacity and above) external USB hard drives that I need to fully encrypt.
Must be fully compati ble with Windows 7 64 bit OS.
PLEASE NOTE: This question is different than the question that I asked earlier about whole hard drive encryption for laptops. This question asks what the best programs are for encrypting an external USB hard drive, not for encrypting an entire laptop hard drive.