Toshiba M5 - Manual (Page 142)

7-10 User’s Manual
HW Setup
Ending the BIOS Setup Program Halfway
The configuration settings can be terminated halfway without saving any of
the changes made.
1. Press the Esc key.
The “Exit without saving? (Y/N)” message is displayed.
2. Press the Y key.
The BIOS setup program will end.
Execute-Disable Bit Capability
This setting, which is displayed on the first page of the setup screen,
configures the Execute-Disable Bit function of the CPU. This function is
specific to Intel processors and, when activated, helps to reduce security
threats to the computer by preventing certain classes of malicious “buffer
overflow” attacks when combined with a supporting operating system such
as Windows XP.
Security controller
The security controller settings are available in SYSTEM SETUP (2/2).
TPM
This setting enables or disables the security controller known as TPM
(Trusted Platform Module).
Clear TPM Owner
This setting is used to erase the data in TPM when disposing of the
computer or when the owner of the computer changes, etc. Once this
operation is carried out, the TPM configuration settings are erased, such
that the encrypted data can no longer be decrypted and the files can no
longer be read. Please backup or delete the data as necessary before
carrying out this operation.
Available Makes the processor’s Execute-Disable Bit
Capability available for use.
Not Available Disables the processor’s Execute-Disable Bit
Capability so that it is not available for use.
(Default).
System configuration changes, other than changes to this setting, should
be made within Windows by using applications such as TOSHIBA HW
Setup, TOSHIBA Password Utility, TOSHIBA Power Saver, Windows
Device Manager and so forth.
Enabled Enables the TPM.
Disabled Disables the TPM (Default).