Lenovo ThinkPad E450, User Manual, Page: 87 / 166

Table 4. Security menu items (continued)
Menu item Submenu item Selection Comments
Password at Boot Device
List • Disabled
• Enabled
If the Security password
is set, this option is used
to specify whether the
Security password must
be entered to display the
F12 boot device list. Select
Enabled to prompt for
the Security password.
Select Disabled to proceed
without any user action
required.
Password Count Exceeded
Error • Disabled
• Enabled
Select Enabled to show
the POST 0199 error and
prompt for the Security
password. Select Disabled
to hide the POST 0199 error
and proceed without any
user action required.
Set Minimum Length • Disabled
• Password length options
Specify a minimum length
for the power-on password
and hard disk password.
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.
Power-On Password • Disabled
• Enabled
Refer to “Power-on
password” on page 53.
Hard Disk1 Password • Disabled
• Enabled
Refer to “Hard disk
passwords” on page
56.
Flash BIOS Updating by
End-Users • Disabled
• Enabled
If you select Enabled ,
all users can update the
UEFI BIOS. If you select
Disabled , only the person
who knows the supervisor
password can update the
UEFI BIOS.
UEFI BIOS Update Option
Secure RollBack Prevention • Disabled
• Enabled
Disabled is the default
value when OS Optimisezd
is set to Disabled . Enabled
is the default value when
OS Optimisezd is set
to Enabled .
If you select Disabled , you
can flash the older version
UEFI BIOS.
Chapter 6
.
Advanced configuration
71