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Table 5. Security menu items (continued)
Menu item
Submenu item Selection Comments
prompt is displayed; the
computer goes ahead and
loads the operating system.
To prevent unauthorized
access, set the user
authentication on the
operating system.
Power-On Password
• Disabled
• Enabled
Refer to “Power-on
password” on page 48
.
Hard Disk1 Password • Disabled
• Enabled
Refer to “Hard disk
passwords” on page
48
.
UEFI BIOS Update Option Flash BIOS Updating by
End-Users
• Disabled
• Enabled
If you select Enabled,
all users can update the
UEFI BIOS. If you select
Disabled, only the person
who knows the supervisor
password can update the
UEFI BIOS.
Memory Protection Execution Prevention • Disabled
• Enabled
Some computer viruses
and worms cause memory
buffers to overow by
running code where only
data is allowed. If the
Data Execution Prevention
feature can be used with
your operating system, then
by selecting Enabled you
can protect your computer
against attacks by such
viruses and worms. If after
choosing Enabled you nd
that an application program
does not run correctly,
select Disabled and reset
the setting.
Intel Virtualization
Technology
AMD-V Technology
• Disabled
• Enabled
If you select Enabled,
a VMM (Virtual Machine
Monitor) can utilize the
additional hardware
capabilities provided by
Virtualization Technology.
Virtualization
Intel VT-d Feature • Disabled
• Enabled
Intel VT-d is Intel
Virtualization Technology
for Directed I/O. When
enabled, a VMM can utilize
the platform infrastructure
for I/O virtualization.
Note: This sub-menu is not
supported in models with
an AMD CPU.
Chapter 7. Advanced conguration 101