Lenovo ThinkPad X121e (English) User Guide - Page 129

Startup menu, Set Minimum Length, Disabled, Password at restart, Attention

Page 129 highlights

If you select Set Minimum Length, you can specify a minimum length for power-on passwords and hard disk passwords. By default, this is set to Disabled. If you set the supervisor password and specify a minimum length for passwords, no one but you can change the length. If you select and enable Password at restart, a password prompt is displayed when you restart the computer. If you select Disabled, no password prompt is displayed; the computer goes ahead and loads the operating system. To prevent unauthorized access, set the user authentication on the operating system. Startup menu You may 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. Attention: After you change your startup sequence, you must be extremely careful not to specify a wrong device during a copy, a save, or a 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 Select the 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 power. Refer to "Boot submenu" on page 113. 2. Select the device you want to start first. To set the order that the UEFI BIOS will use when starting an operating system, you can press the - or + key to move the device up or down. 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 "To interrupt normal startup, press the blue ThinkVantage button" message is displayed at the lower-left of the screen, press F12. 3. Select the device you want to start first from the Boot menu. Note: The Boot menu will be shown when the system cannot boot from any devices or operating system was not found. Boot submenu The following list, showing the order in which devices will be started up, is always displayed. Even devices that are not attached to or installed on your computer are listed. For each device that is attached to or installed on the computer, information about it is presented after the colon. 1. USB CD: 2. USB FDD: 3. ATAPI CD0: 4. ATA HDD0: 5. ATA HDD1: Chapter 8. Advanced configuration 113

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If you select
Set Minimum Length
, you can specify a minimum length for power-on passwords and hard
disk passwords. By default, this is set to
Disabled
. If you set the supervisor password and specify a
minimum length for passwords, no one but you can change the length.
If you select and enable
Password at restart
, a password prompt is displayed when you restart the
computer. If you select
Disabled
, no password prompt is displayed; the computer goes ahead and loads the
operating system. To prevent unauthorized access, set the user authentication on the operating system.
Startup menu
You may 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.
Attention:
After you change your startup sequence, you must be extremely careful not to specify a wrong
device during a copy, a save, or a 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
Select the
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 power.
Refer to “Boot submenu” on page 113.
2. Select the device you want to start first.
To set the order that the UEFI BIOS will use when starting an operating system, you can press the
or
+
key to move the device up or down.
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 “To interrupt normal startup, press the blue ThinkVantage button”
message is displayed at the lower-left of the screen, press F12.
3. Select the device you want to start first from the Boot menu.
Note:
The Boot menu will be shown when the system cannot boot from any devices or operating
system was not found.
Boot submenu
The following list, showing the order in which devices will be started up, is always displayed. Even devices
that are not attached to or installed on your computer are listed. For each device that is attached to or
installed on the computer, information about it is presented after the colon.
1. USB CD:
2. USB FDD:
3. ATAPI CD0:
4. ATA HDD0:
5. ATA HDD1:
Chapter 8
.
Advanced configuration
113