HP Deskpro AP550 User's Guide download pdf (Page 56)

B-10 Computer Setup

Compaq Confidential - Need to Know Required

Writer: Lydia Sanchez Part Number: xxxxxx-001 File Name: appb.doc

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Computer Setup Continued

Heading Option Description

Security

(continued)

Master Boot Record

Security

Allows you to enable or disable Master Boot Record

(MBR) Security.

When enabled, the BIOS rejects all requests to write

to the MBR on the current bootable disk. Each time

the computer is powered on or rebooted, the BIOS

compares the MBR of the current bootable disk to the

previously-saved MBR. If changes are detected, you

are given the option of saving the MBR on the current

bootable disk, restoring the previously-saved MBR,

or disabling MBR Security. You must know the setup

password, if one is set.

Note: Disable MBR Security before intentionally

changing the formatting or partitioning of the current

bootable disk. Several disk utilities (such as FDISK

and FORMAT) attempt to update the MBR. If MBR

Security is enabled and disk accesses are being

serviced by the BIOS, write requests to the MBR are

rejected, causing the utilities to report errors. If MBR

Security is enabled and disk accesses are being

serviced by the operating system, any MBR change

will be detected by the BIOS during the next reboot,

and an MBR Security warning message will be

displayed.

Feature supported on select models only.

Save Master Boot Record Saves a backup copy of the Master Boot Record of

the current bootable disk.

Note: Only appears if MBR Security is enabled.

Restore Master Boot

Record

Restores the backup Master Boot Record to the

current bootable disk.

Note: 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 of the MBR was saved

Support for Computer Setup options may vary depending on your specific hardware configuration.

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HP Deskpro AP550 User's Guide Page 56

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