HP Xw6200 - Workstation - 2 GB RAM Technical Reference Manual page 58

Power outage
Startup failure
PC component failure (such as processor or power supply)
Forgotten password
CAUTION The side access panel FailSafe Key is a specialized tool available from HP. Be prepared;
order this key before you need one.
To obtain the FailSafe Key, complete any one of the following tasks:
Contact your authorized HP reseller or service provider.
Visit the HP Web site (http://www.hp.com) for ordering information.
Visit the Contact HP Worldwide Web site (http://welcome.hp.com/country/us/en/wwcontact.html) for
contact information.
Master Boot Record 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 detects and reports unintentional or malicious changes to the
MBR, such as those caused by some workstation 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.
To enable MBR Security:
1 Turn on or restart the workstation. If you are in Windows, click Start>Shut Down>Restart.
2 As soon as the workstation is turned on, press and hold the F10 key until you enter Computer Setup.
Press Enter to bypass the title screen, if necessary.
NOTE If you do not press the F10 key at the appropriate time, you must restart the workstation and
press and hold the F10 key again to access the utility.
If you are using a PS/2 keyboard, you may see a Keyboard Error message—disregard it.
3 Select Security>Master Boot Record Security>Enabled.
4 Select Security>Save Master Boot Record.
5 Before exiting, click File>Save Changes and Exit.
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 might occur while the operating system is running.
58 SYSTEM MANAGEMENT