User's Guide

Table Of Contents
UEFI/LegacyBootPriority
Values:LegacyFirst,UEFIFirst
Descriptions:SelectthebootprioritybetweenUEFIandLegacy.
CSMSupport(forUEFIOnly)
Values:Yes,No
CompatibilitySupportModule(CSM)isrequiredforstartingthelegacyoperatingsystem.Ifyou
selectUEFIOnly,CSMSupportisselectable.ForBothorLegacyOnlymode,CSMSupportisnot
selectable.
Note:IfyouselectUEFIOnly,thecomputercannotstartfromthebootabledevicesthatdonothave
theUEFI-enabledoperatingsystem.
BootMode
Values:Quick,Diagnostics
Descriptions:DefinewhichscreenisdisplayedduringthePOST,thelogoscreenorthetextmessage
screen.
OptionKeyDisplay
Values:Disabled,Enabled
Descriptions:Ifyoudisablethisoption,the“Tointerruptnormalstartup,pressEnter.messagewillnotbe
displayedduringthePOST.
BootDeviceListF12Option
Values:Disabled,Enabled
Descriptions:Ifyouenablethisoption,youcanopentheBootMenuwindowbycontinuouslypressing
F12whenthecomputerispoweredon.
BootOrderLock
Values:Disabled,Enabled
Descriptions:Enablethisoptiontolockthebootdevicepriorityorder.
Restartmenu
Note:TheBIOSmenuitemsmightchangewithoutnotice.Dependingonthemodel,thedefaultvalue
mightvary.
ExitSavingChanges
Descriptions:Savethechangesandrestartthecomputer.
ExitDiscardingChanges
Descriptions:Discardthechangesandrestartthecomputer.
LoadSetupDefaults
Descriptions:Restoretothefactorydefaultsettings.
Note:EnableOSOptimizedDefaultstomeettheMicrosoft(R)Windows8(R)certificationrequirement.
Whenyouchangethissetting,someothersettingsarechangedautomatically,suchasCSMSupport,
UEFI/LegacyBoot,SecureBoot,andSecureRollBackPrevention.
DiscardChanges
Descriptions:Discardthechanges.
SaveChanges
Descriptions:Savethechanges.
58ThinkPadE570,E570c,andE575UserGuide