Folder Castle protects your digital data from thieves and snoopers. It provides two levels of protection: you can lock away files and folders or you can put them into a secure 'container' with on-the-fly AES-256 encryption. These containers are called Secure Storage and work in much the same way as an ordinary drive: you can mount or unmount them, defrag them, or check them for errors.

Once the file is locked away, you can be sure that it will not be seen in Windows Explorer or any other file manager even if the computer is rebooted in Safe Mode. For more peace of mind, you can enter into the Stealth Mode, which actually hides the presence of Folder Castle itself.

To run Folder Castle or access Secure Storage, you should confirm your identity by entering the password.

Folder Castle has a standard layout that makes options readily and easily available. The program integrates into Windows Explorer, including context menu, toolbar, and hotkey support.