HP Dx5150 - Compaq Business Desktop Reference Manual page 40

Desktop Management
✎
If you do not press the
F10
and hold the
If you are using a PS/2 keyboard, you may see a Keyboard Error message—disregard it.
3. Select Advanced BIOS Features > MBR Security and press
4. In the MBR Security box, press the up or down arrows to select Enabled or Disabled.
5. To accept the changes, press
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.
✎
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.
Each time the computer is turned on or restarted, the BIOS compares the MBR of the current
bootable disk to the previously saved MBR. If changes are detected and if the current bootable
disk is the same disk from which the MBR was previously saved, the following message is
displayed:
1999—Master Boot Record has changed.
1. Press any key to enter Setup to configure MBR Security.
2. Upon entering Computer Setup, you must disable the MBR Security feature.
You must know the supervisor password, if one exists.
If changes are detected and if the current bootable disk is not the same disk from which the MBR
was previously saved, the following message is displayed:
2000—Master Boot Record Hard Drive has changed.
1. Press any key to enter Setup to configure MBR Security.
2. Upon entering Computer Setup, you must disable the MBR Security feature.
You must know the supervisor password, if one exists.
In the unlikely event that the previously saved MBR has been corrupted, the following message is
displayed:
1998—Master Boot Record has been lost.
1. Press any key to enter Setup to configure MBR Security.
2. Upon entering Computer Setup, you must disable the MBR Security feature.
You must know the supervisor password, if one exists.
3–14
F10
key at the appropriate time, you must restart the computer and press
key again to access the utility.
Enter.
To abort the changes, press the
361685-001
Enter.
Esc
key.
Service Reference Guide, dx5150