From lbeily software:
FolderProtector is a new security tool that lets you hide, or restrict access to, your files and folders. Read-only files and folders also protect you from malicious programs including viruses, worms, and Trojan horses, and your files and folders cannot be deleted, damaged, or harmed in any other way. Even if a virus is introduced to your system, your protected folders will not be detected, infected, or harmed. FolderProtector does not change the file structure of the data, does not move the protected data, and does not change Windows system files. You cannot lose your files.