Secure Folder is a free software to password protect any folder (Folder Locker)

• Unlimited number of folders can be protected.
• Intuitive & easy-to-use interface.
• NTFS, FAT32 and FAT volumes supported.
• Implements 256-bit AES to encrypt files.
• Effective password protection.
• System Cleaner, File shredder, Virtual Drive.
• Uninstalling will not uncover locked folders.
• Windows Explorer integration.
• Supports Drag & Drop.
• Live update.
• Compatible with Windows XP, Vista, 7