HP 205 G1 Maintenance & Service Manual page 63

Table 6-4 Computer Setup—Security (continued)
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USB Security Allows you to set Enabled/Disabled (default is Enabled) for:
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Slot Security Allows you to disable any PCI or PCI Express slot. Default is enabled.
Network Boot Enables/disables the computer's ability to boot from an operating system installed on a network server.
Default is enabled.
System IDs Allows you to set:
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Master Boot Record Enables/disables Master Boot Record (MBR) security.
Security
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:
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:
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CAUTION:
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.
System Security (these Data Execution Prevention (enable/disable) - Helps prevent operating system security breaches. Default is
options are hardware enabled.
dependent)
System audio
USB controller (varies by model)
Network controller
NOTE: You must disable AMT before trying to hide the network controller.
Serial port
Parallel port
SATA ports (varies by model)
Front USB Ports
Rear USB Ports
Accessory USB Ports
Asset tag (18-byte identifier), a property identification number assigned by the company to the
computer.
Ownership tag (80-byte identifier) displayed during POST.
Universal Unique Identifier (UUID) number. The UUID can only be updated if the current chassis serial
number is invalid. (These ID numbers are normally set in the factory and are used to uniquely
identify the system.)
Keyboard locale setting for System ID entry.
Most operating systems control access to the MBR of the current bootable disk; the BIOS cannot
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
Restoring a previously saved MBR after a disk utility or operating system has modified the
Computer Setup (F10) Utilities 55