Toshiba PTM70U-00C007, User Manual

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7-10 User’s Manual
HW Setup & BIOS Setup
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). (10) This function is provided with some
models.
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.
The operating procedure is as follows:
1. Move the cursor to the
Clear TPM Owner setting and press the Space
key or BkSp key.
2. A message is displayed. Press the Y , E , S , and Enter keys and the
TPM information is erased.
3. The TPM setting changes from being displayed as Enable to Disabled ,
and the setting is no longer displayed.
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).