Table5.Securitymenuitems(continued)
MenuitemSubmenuitemSelectionComments
SecureBoot•Disabled
•Enabled
EnableordisableUEFI
SecureBootfeature.
Windows8operating
systemrequiresthisfeature
tobeenabled.
PlatformModeUserMode
SecureBootModeStandardMode
ResettoSetupMode•Y es
•No
Thisoptionisusedtoclear
thecurrentplatformkey
andputthesysteminto
setupmode.Y oucaninstall
yourownplatformkeyand
customizetheSecureBoot
signaturedatabasesin
setupmode.SecureBoot
modewillbesettocustom
mode.
SecureBoot
RestoreFactorykeys•Yes
•No
Thisoptionisusedto
restoreallkeysand
certicatesinSecure
Bootdatabasestofactory
defaults.Anycustomized
SecureBootsettings
willbeerased,andthe
defaultplatformkeywillbe
re-establishedalongwith
theoriginalsignature
databasesincluding
certicateforWindows
8operatingsystem.
Startupmenu
Youmightneedtochangethestartupsequenceofyourcomputer.Forexample,ifyouhavedifferent
operatingsystemsondifferentdevices,youcanhavethesystemstartupfromeitherofthem.
Attention:Afteryouchangeyourstartupsequence,youmustbeextremelycarefulnottospecifyawrong
deviceduringacopy,asave,oraformatoperation.Ifyouspecifyawrongdevice,yourdataandprograms
mightbeerasedoroverwritten.
Attention:IfyouareusingtheBitLocker®driveencryption,youshouldnotchangethestartupsequence.
BitLockerdriveencryptiondetectsthechangeofstartupsequenceandlocksthecomputerfrombooting.
Changingthestartupsequence
SelectingStartuptodisplaytheBootsubmenu.
Tochangethestartupsequence,dothefollowing:
1.SelectBoot;thenpressEnter.
YoucanusetheBootsubmenutospecifythestartupsequencethatrunswhenyouturnonthepower.
Referto“Bootsubmenu”onpage115.
2.Selectthedeviceyouwanttostartrst.
3.PressFn+F10tosavethechangesandrestartthesystem.
114UserGuide