Table 5. Security menu items (continued)

Menu item

Submenu item

Selection

Comments

 

 

 

 

 

 

 

signature databases in

 

 

 

setup mode.

 

 

 

Secure Boot mode will be

 

 

 

set to custom mode.

 

 

 

 

 

Restore Factory Keys

 

This option is used to

 

 

 

restore all keys and

 

 

 

certificates in Secure

 

 

 

Boot databases to factory

 

 

 

defaults. Any customized

 

 

 

Secure Boot settings

 

 

 

will be erased, and the

 

 

 

default platform key will be

 

 

 

re-established along with

 

 

 

the original signature

 

 

 

databases including

 

 

 

certificate for Windows

 

 

 

8 operating system.

 

 

 

 

Startup menu

You might need to change the startup sequence of your computer. For example, if you have different operating systems on different devices, you can have the system start up from either of them. To change the computer startup settings, select Startup from the ThinkPad Setup main menu.

Attention: After you change your startup sequence, you must be extremely careful not to specify a wrong device during a copy, save, or format operation. If you specify a wrong device, your data and programs might be erased or overwritten.

Attention: If you are using the BitLocker® drive encryption, you should not change the startup sequence. BitLocker drive encryption detects the change of startup sequence and locks the computer from booting.

Changing the startup sequence

Selecting Startup to display the Boot submenu.

To change the startup sequence, do the following:

1.Select Boot; then press Enter.

You can use the Boot submenu to specify the startup sequence that runs when you turn on the computer. Refer to “Boot submenu” on page 100.

2.Select the device you want to start first.

3.Press F10 to save the changes and restart the system.

To change the startup sequence temporarily so that the system starts up from a different drive, do the following:

1.Turn off the computer.

2.Turn on the computer; then, while the message “To interrupt normal startup, press Enter.” is displayed in the lower left corner of the screen, press F12.

3.Select the device you want to start first from the Boot menu.

Note: The Boot menu will be displayed when the operating system is not found or when the computer cannot boot from any devices.

Chapter 7. Advanced configuration 99

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Image 115
Lenovo X131E manual Startup menu, Changing the startup sequence