Creating other users adds a wrinkle most DiskLock users won't need. Once installed, it forces the user to log in at boot time and to disable the screen saver which locks out the screen after a preset timeout. The lockout can also be invoked from inside any program with a special key sequence. On Guard On Guard also installs quite quickly. The basic access rights for the student account need little if any change.
Modification is quite easy using their program.
To turn it into a private user machine requires a little more effort than DiskLock as the student access should be deleted. The program also has a lockout timer and a key sequence to invoke it manually, however the key sequence only works from the Finder. This last restriction makes it better suited for public Macs, where only one program running at a time and long periods of inactivity tends to be the rule. Protecting Your Mac Norton DiskLock Norton DiskLock will prevent unauthorized users from starting up, using or reading from a protected Mac. The startup procedure is interrupted in order for the user to log in.