Folder Protector is a freeware for protecting sensitive files from others using the same computer. Folder protector hides unlimited number of folders.
After installing first time you have to set a password and secret question and answer. You can select the folders you want to hide, it makes them invisible. You can always access them easily, enter the password to unhide the folders.
Folder Protector is free and works with WIndows 2000/XP/Vista and requires .NET framework.