If Enhanced Security is enabled and you have not set an administratorpassword, your computer will operate as though enhanced security is disabled.If Enhanced Security is enabled and you have set an administrator password,your computer will operate as follows:v The contents of the security EEPROM (your administrator password andstartup sequence) will be protected from failure of the battery and CMOSmemory.v The security EEPROM will be protected from unauthorized access because itlocks after your computer is turned on and the system programs havecompleted their startup routine. Once it is locked, the security EEPROMcannot be read from or written to by any software application or systemsoftware until the computer is turned off and back on again. On a network,this might prevent certain functions from being performed remotely on yourcomputer.Enhanced Security adds a hard lock for an extra measure of protection for thesystem programs in your computer. Normally, the entire contents of thesystem programs EEPROM is write protected with a soft lock. A soft lockenables the Remote Administration program to function in a networkenvironment. With a hard lock, when your computer is turned on and thesystem programs startup routine is completed, Remote Administration islocked and cannot be unlocked until the computer is restarted and theadministrator password is entered. Note that, in a networking environment,this prevents the system programs in your computer from being updatedremotely. Someone must be present at your computer to turn it on and offand enter the administrator password.v Some models have a chassis-intrusion feature that will alert you if the coverof your computer has been opened. This feature will work if your computeris on or off. If the cover has been opened, a prompt for your administratorpassword will appear on your screen, and your computer will remain in asuspended state until your administrator password is entered.v Configuration settings cannot be changed in the Configuration/Setup Utilityprogram until you enter the administrator password. This means that anychanges to the computer hardware that the system programs detect willgenerate a configuration error until you enter the administrator password.To enable or disable Enhanced Security:1. Update the system programs. See “Updating system programs” on page 20.2. During the run of the system program update, you are given the option ofenabling or disabling Enhanced Security. Your choice is automaticallyrecorded in the System Security menu of the Configuration/Setup Utilityprogram.32 User Guide
