HP EliteDesk 705 G2 Small Form Factor Maintenance And Service Manual page 78

Table 5-2 Computer Setup—Security (continued)
Set Up BIOS Power-On
Password
Change BIOS Power-On
Password
(This selection is active
only if a BIOS power-on
password is set.)
DriveLock
Secure Erase
Save/Restore MBR of the
system hard drive
Smart Cover
68 Chapter 5 Computer Setup (F10) Utility
CAUTION: Clearing the TPM resets it to factory defaults and turns it off. You will lose all created keys and
data protected by those keys.
Lets you set and enable a BIOS power-on password. The power-on password prompt appears after a
power cycle or reboot. If the user does not enter the correct power-on password, the unit will not boot.
Lets you change the BIOS power-on password.
You must know the current password to be able to change it.
Allows you to assign or modify a master or user password for hard drives. When this feature is enabled,
the user is prompted to provide one of the DriveLock passwords during POST. If neither is successfully
entered, the hard drive will remain inaccessible until one of the passwords is successfully provided during
a subsequent cold-boot sequence.
NOTE: This selection will only appear when at least one drive that supports the DriveLock feature is
attached to the system.
CAUTION: Be aware that these settings take place immediately. A save is not necessary.
CAUTION: Be sure to document the DriveLock password. Losing a DriveLock password will render a drive
permanently locked.
After you select a drive, the following options are available:
Set DriveLock Master Password. Sets the drive's master password but does not enable DriveLock.
Enable DriveLock. Sets the drive's user password and enables DriveLock.
Lets you select a hard drive to completely erase.
Once a hard drive has been erased with a program that utilizes Secure Erase firmware commands, no file
recovery program, partition recovery program, or other data recovery method will be able to extract data
from the drive.
Enabling this feature will save the Master Boot Record (MBR) of the system hard drive. If the MBR gets
changed, the user will be prompted to restore the MBR. Default is disabled.
The MBR contains information needed to successfully boot from a disk and to access the data stored on
the disk. Master Boot Record Security may prevent unintentional or malicious changes to the MBR, such as
those caused by some viruses or by the incorrect use of certain disk utilities. It also allows you to recover
the "last known good" MBR, should changes to the MBR be detected when the system is restarted.
When MBR Security is enabled, the BIOS prevents any changes being made to the MBR of the current
bootable disk while in MS-DOS or Windows Safe Mode.
NOTE: Most operating systems control access to the MBR of the current bootable disk; the BIOS cannot
prevent changes that may occur while the operating system is running.
Restores the backup Master Boot Record to the current bootable disk. Default is disabled.
Only appears if all of the following conditions are true:
● MBR security is enabled
● A backup copy of the MBR has been previously saved
The current bootable disk is the same disk from which the backup copy was saved
●
CAUTION: Restoring a previously saved MBR after a disk utility or operating system has modified the
MBR, may cause the data on the disk to become inaccessible. Only restore a previously saved MBR if you
are confident that the current bootable disk's MBR has been corrupted or infected with a virus.
Cover Lock (Lock/Unlock)
Default is 'Unlock'.