Lenovo 031925U Laptop User Manual


 
Memory Protection: Specify the settings for the Data Execution Prevention feature.
Virtualization: Enable or disable the settings for Intel Virtualization Technology and Intel VT-d Feature.
I/O Port Access: Enable or disable the access to individual I/O ports.
Anti-Theft: Enable or disable UEFI interface to activate Anti-Theft services, such as Intel AT-p and
Computrace.
To set a password, go to the Security menu and select Password. The following submenu is displayed:
Supervisor Password
Lock UEFI Settings
Set Minimum Length
Password at unattended boot
Password at restart
Power-On Password
Hard Disk x Password
Notes:
Hard Disk 1 means the hard disk drive built into your computer.
Lock UEFI Settings enables or disables the function that protects items in the ThinkPad Setup from being
changed by a user who does not have the supervisor password. By default, this is set to Enabled. If
you set the supervisor password and enable this function, no one but you can change any items in the
ThinkPad Setup.
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 unattended boot, a password prompt is displayed when the computer
is turned on, from either a power-off state or hibernation. 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.
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
Selecting Startup to display the Boot submenu.
To change the startup sequence, do the following:
Chapter 8. Advanced conguration 115