This method is preferred when using a USB stick on the same few computers (i.e., home and office computers).Įncrypting selected files/folders can be convenient but has some risks. Encryption of the entire removable drive.This is the ideal choice if you need to access files from many different computers or when sharing is required. Encryption of selected files and/or folders.How to encrypt external hard drives? Generally speaking, there are 2 methods: Yet e xternal drives and USB sticks are also easy to lose and, if not encrypted, sensitive information can easily be accessed by unauthorized people. Thanks to their storage capacity and small size, they are a great way to transfer or view documents from one computer to another. Why should you encrypt data on external hard drives? Removable drives are practical tools for businesses everywhere.