Password protect USB Flash Drive USB Safeguard is a portable freeware that lets you lock your pen drive and make it write-protected.

You can lock your USB ports from working with USB sticks. You can use one of these free USB port-locking software to protect your data.

If your USB drive contains sensitive information that you don't want to fall into the wrong hands, it makes sense to enable a password – the total process only takes a couple of minutes. By default, ...

This versatile utility not only safeguards your data, but also backs it up or shreds it. It can even lock your USB and external drives.