Hide Folders is described as 'If you are interested in protecting your documents and folders, Hide Folders is just what you are searching for. With a click you will conceal files and folders with all their contents'. There are more than 25 alternatives to Hide Folders for a variety of platforms, including Windows, Mac, Android, iPhone and iPad. The best alternative is Windows BitLocker. It's not free, so if you're looking for a free alternative, you could try AES Crypt or Axcrypt. Other great apps like Hide Folders are File Lock PEA (Free, Open Source), Folder Lock (Paid), Folder Guard (Paid) and Wise Folder Hider (Free).
BitLocker Drive Encryption is a data protection feature that integrates with the operating system and addresses the threats of data theft or exposure from lost, stolen, or inappropriately decommissioned computers.
AES Crypt is an advanced file encryption utility that integrates with the Windows shell or runs from the Linux command prompt to provide a simple, yet powerful, tool for encrypting files using the Advanced Encryption Standard (AES).
Password-encryption of files and folders. The program is written in Java and therefore platform-independent and runs on nearly every system without installation, but requires a Java Runtime Environment - that is already installed in most cases.
Folder Guard is powerful security software for Windows 7, Vista, XP, 2000. You can use it to protect folders with passwords, hide files and folders from other users, restrict access to Control Panel, and more.
Wise Folder Hider is a free file/folder hiding tool. You can use it to hide files and folders on local partitions or removable devices.The data can't be accessed by other programs or on other operating systems such as DOS.