1. It needs to password protect an external hard drive.
2. Files hidden and locked until the password entered.
3. Must work on an NTFS formatted drive.
4. The program must be contained on the external drive (Plug it in a new computer, type in the password and you're good to go)
5. Encryption is not required. In fact, I'd prefer no encryption.
Those are the only requirements. I've looked at a program called lockngo, but it does not support NTFS.
Any thoughts? Thank you.