SecretFolder enables you to hide and password protect selected folders, so that they cannot be seen or accessed by other users. Once you run the application and have set a master password, you can simply drag and drop folders onto the list and they will be automatically hidden from view (as well as DOS commands).
To unhide a folder simply open the program, enter your password and click the "Unlock" button. There is no limit to the number of folders you can hide. SecretFolder supports NTFS, FAT32, exFAT and FAT file systems.