User guide

Table6.Securitymenuitems(continued)
Menuitem
SubmenuitemSelectionComments
PhysicalPresenceforClear
•Disabled
•Enabled
Thisoptionenablesor
disablestheconrmation
messagewhenyouclear
thesecuritychip.
FlashBIOSUpdatingby
End-Users
•Disabled
•Enabled
IfyouselectEnabled,
alluserscanupdatethe
UEFIBIOS.Ifyouselect
Disabled,onlytheperson
whoknowsthesupervisor
passwordcanupdatethe
UEFIBIOS.
UEFIBIOSUpdateOption
SecureRollBackPrevention
•Disabled
•Enabled
IfyouselectDisabled,
end-usercanashthe
olderversionUEFIBIOS.
IfyouselectEnabled,
end-usercannotashthe
olderversionUEFIBIOS.
MemoryProtectionExecutionPrevention•Disabled
•Enabled
Somecomputerviruses
andwormscausememory
bufferstooverowby
runningcodewhereonly
dataisallowed.Ifthe
DataExecutionPrevention
featurecanbeusedwith
youroperatingsystem,then
byselectingEnabledyou
canprotectyourcomputer
againstattacksbysuch
virusesandworms.Ifafter
choosingEnabledyound
thatanapplicationprogram
doesnotruncorrectly,
selectDisabledandreset
thesetting.
IntelVirtualization
Technology
•Disabled
•Enabled
IfyouselectEnabled,a
VirtualMachineMonitor
(VMM)canutilizethe
additionalhardware
capabilitiesprovidedby
VirtualizationTechnology.
Virtualization
IntelVT-dFeature•Disabled
•Enabled
IntelVT-disIntel
VirtualizationTechnology
forDirectedI/O.When
enabled,aVMMcanutilize
theplatforminfrastructure
forI/Ovirtualization.
118UserGuide