HP Deskpro ap230 Desktop Management Guide - Deskpro Workstation AP230 - Page 18
The Master Boot Record MBR contains information needed to, Master Boot Record Security
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Master Boot Record Security The Master Boot Record (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 computer 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, complete the following steps: 1. Turn on or restart the computer. If you are in Windows, click Start à Shut Down à Restart the Computer. 2. When the F10 Setup message appears in the lower-right corner of the screen, press the F10 key. Press Enter to bypass the title screen, if necessary. If you do not press the F10 key while the message is displayed, you must restart the computer to access the utility. 3. Select Security à Master Boot Record Security à Enabled. 4. Select Security à Save Master Boot Record. 5. Before exiting, click File à 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. 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. 14 Desktop Management Guide