•If you are using the BitLocker drive encryption, do not change the startup sequence. BitLocker drive encryption 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.Turn off the computer.
2.Turn on the computer. When the ThinkPad logo is displayed, press F12.
3.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 operating system 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.
Table 6. Startup menu items
Menu item | Value |
| Comments | |
|
|
|
|
|
Boot |
|
|
| Select the boot device when you |
|
|
|
| press the power button to turn on the |
|
|
|
| computer. |
|
|
|
|
|
Network Boot |
|
|
| Select the boot device when the system |
|
|
|
| wakes from LAN. If Wake On LAN is |
|
|
|
| enabled, the network administrator can |
|
|
|
| turn on all of the computers in a LAN |
|
|
|
| remotely by use of network management |
|
|
|
| software. |
|
|
|
|
|
UEFI/Legacy Boot | • | Both |
| Select system boot capability. |
|
| – UEFI/Legacy Boot Priority | • Both: Select priority of boot options | |
|
| – | UEFI First | between UEFI and Legacy. |
|
| • UEFI Only: The system will boot from | ||
|
| – | Legacy First | |
|
| the UEFI enabled operating system. | ||
| • | UEFI Only | ||
| • Legacy Only: The system will boot | |||
| • | Legacy Only | ||
| from any operating system other than | |||
| CSM Support (for UEFI Only) | the UEFI enabled one. | ||
|
| |||
| • | Yes |
| Note: If you select UEFI Only, the |
|
| system cannot boot from the bootable | ||
| • | No |
| |
|
| devices that do not have the UEFI | ||
|
|
|
| enabled operating system. |
|
|
|
| Compatibility Support Module (CSM) is |
|
|
|
| required for booting the legacy operating |
|
|
|
| system. If you select UEFI Only, CSM |
|
|
|
| Support is selectable. For Both or |
|
|
|
| Legacy Only mood, CSM Support is |
|
|
|
| not selectable. |
|
|
|
|
|
