Free Download GiliSoft USB Stick Encryption full version standalone offline installer for Windows. It's specially designed to create password-protected USB memory sticks.
Overview of GiliSoft USB Stick Encryption
It creates protected areas on the disk needed to enter a password to see contents. Data in the protected areas are encrypted by 256-bit AES on-the-fly encryption. The protected USB stick is fully autonomous and requires no special software installed on the computer.
It's a powerful tool that password protects all your external portable media. On top of that, Whatever external storage device you use, the USB stick encryption password protects it within seconds.
It works on all flavors of Windows.