Lock My Computer is a security tool that disables and blocks certain parts of your PC so that no-one can access them or modify them.
Some of the parts Lock My Computer blocks are: the Control Panel, the Desktop, the Outlook Express configuration, the Internet Explorer configuration, etc. Also, it stops access to the hard drive, diskette drive, CD drive and external drives (or simply makes them read only).
This way, with Lock My Computer you can avoid anyone deleting or modifying important data. It works with all FAT systems, and also FAT 32 and NTFS.