User's Manual

Table Of Contents
Table4.Securitymenuitems(continued)
Menuitem
SubmenuitemSelectionComments
OnlyandsetCSMSupport
asNo.
PlatformMode
SetupMode
UserMode
Specifythesystem
operatingmode.
SecureBootModeStandardMode
CustomMode
Specifythesystem
operatingmode.
ResettoSetupMode
Yes
No
Thisoptionisusedtoclear
thecurrentplatformkey
andputthesysteminto
SetupMode.Youcan
installyourownplatform
keyandcustomizethe
SecureBootsignature
databasesinSetupMode.
SecureBootmodewillbe
settoCustomMode.
RestoreFactorykeysYes
No
Thisoptionisusedto
restoreallkeysand
certificatesinSecure
Bootdatabasestofactory
defaults.Anycustomized
SecureBootsettings
willbeerased,andthe
defaultplatformkeywillbe
re-establishedalongwith
theoriginalsignature
databasesincluding
certificateforWindows
8.1operatingsystem.
ClearAllSecureBootKeys
Yes
No
Thisoptionisusedtoclear
allkeysandcertificatesin
SecureBootdatabases.
Youcaninstallyourown
keysandcertificatesafter
selectingthisoption.
Startupmenu
Tochangethestartupsettingsofyourcomputer,selecttheStartuptabfromtheThinkPadSetupmenu.
Attention:
Afteryouchangethestartupsequence,ensurethatyouselectacorrectdeviceduringacopy,asave,ora
formatoperation.Otherwiseyourdatamightbeerasedoroverwritten.
IfyouareusingtheBitLockerdriveencryption,donotchangethestartupsequence.BitLockerdrive
encryptionlocksthecomputerfromstartingoncedetectsthechangeofstartupsequence.
Tochangethestartupsequencetemporarilysothatthecomputerstartsfromadesireddrive,dothefollowing:
1.Turnoffthecomputer.
2.Turnonthecomputer.WhentheThinkPadlogoisdisplayed,presstheF12key.
3.Selectthedevicethatyouwantthecomputertostartfrom.
66UserGuide