Usually most computer users divide their hard disk into several partition, each disk stores one kind of data, for example, install system in C drive, store games in D drive, save important data in E drive, and backup in F drive. This is the most ideal partition way. However, people can check all your disks if you don't password your computer.
Even if you leave your computer for a little while, someone may steal or check data in your computer. Your secrets will be known by the person you don't want to let him know. How to solve this problem? The easiest way is to password protect files and folders.
idoo File Encryption software may protect your important files/folders by giving password to the disk. By password-protecting the files/folders, you are the only one that hold the key to access that disk, unless you also authorize other person to access the very disk.
Watch out! You may ignore the importance of disk password. Just Google it, there are plenty of people's privacy were exposed, which made them notorious. That's terrible, isn't it?