Table 6. Security menu items (continued)Menu item Submenu item Selection CommentsSecure Boot Mode • Standard Mode• Custom ModeSpecify the Secure Boot mode.Reset to Setup Mode • Yes• NoThis option is used to clear thecurrent platform key and put thesystem into setup mode. You caninstall your own platform key andcustomize the Secure Boot signaturedatabases in setup mode. SecureBoot mode will be set to custommode.Restore Factory keys • Yes• NoThis option is used to restore allkeys and certificates in Secure Bootdatabases to factory defaults. Anycustomized Secure Boot settings willbe erased, and the default platformkey will be re-established along withthe original signature databasesincluding certificate for Windows 8.1operating system.Startup menuTo change the startup settings of your computer, select the Startup tab from the ThinkPad Setup menu.Attention:• After you change the startup sequence, ensure that you select a correct device during a copy, a save, or aformat operation. Otherwise your data might be erased or overwritten.• If you are using the BitLocker drive encryption, do not change the startup sequence. BitLocker driveencryption locks the computer from starting once detects the change of startup sequence.To change the startup sequence temporarily so that the computer starts from a desired drive, do the following:1. Restart the computer. When the ThinkPad logo is displayed, press F12.2. Select the device that you want the computer to start from.Note: The Boot menu will be displayed if the computer cannot start from any devices, or the operatingsystem cannot be found.The following table lists the Startup menu items. Default values are in boldface.Note: Some items are displayed on the menu only if the computer supports the corresponding features.Chapter 7. Advanced configuration 89
