20DAS0TX00 Lenovo Computing

User Manual - Page 82

For 20DAS0TX00.

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Table3.Securitymenuitems(continued)
Menuitem
Submenuitem
Value
Comments
FlashBIOSUpdatingby
End-Users
Disabled
Enabled
IfyouselectEnabled,
alluserscanupdatethe
UEFIBIOS.Ifyouselect
Disabled,onlytheperson
whoknowsthesupervisor
passwordcanupdatethe
UEFIBIOS.
UEFIBIOSUpdateOption
SecureRollBackPrevention
Disabled
Enabled
IfyouselectDisabled,
youcanflashtoanearlier
versionoftheUEFIBIOS.
IfyouselectEnabled,you
cannotflashtoanearlier
versionoftheUEFIBIOS.
Note:Thisitemissetas
Disabledbydefaultwhen
theOSOptimizedDefaults
ontheRestartmenuisset
asDisabled.Thisitemis
setasEnabledbydefault
whentheOSOptimized
DefaultsissetasEnabled.
MemoryProtectionExecutionPreventionDisabled
Enabled
Somecomputerviruses
andwormscausememory
bufferstooverflow.By
selectingEnabled,you
canprotectyourcomputer
againstattacksbysuch
virusesandworms.Ifafter
choosingEnabledyoufind
thataprogramdoesnotrun
correctly,selectDisabled
andresetthesetting.
IntelVirtualization
Technology
or
AMD(TM)Virtualization
Technology
Disabled
Enabled
IfyouselectEnabled,a
VirtualMachineMonitor
(VMM)canutilizethe
additionalhardware
capabilitiesprovidedby
Intel/AMDVirtualization
Technology.
Virtualization
IntelVT-dFeature(available
forIntelmicroprocessor
only)
Disabled
Enabled
IntelVT-dstandsforIntel
VirtualizationTechnology
forDirectedI/O.When
enabled,aVMMcanutilize
theplatforminfrastructure
forI/Ovirtualization.
66UserGuide
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