Fujitsu EM7455D2, Operating Manual

Page: 75 / 119

Security functions
Trusted Platform Module - TPM (device dependent)
TPM Trusted PlatformModule
To use the TPM, you
must
enable the TPM in the
BIOS Setup
before the software is
installed. The requirement for this is that you have assigned at least the supervisor
HDD password (see
"Security functions", Page 64 ).
Enabling TPM
• Requirement: You have assigned a supervisor password (see "Security functions", Page 64 ).
► Call BIOS Setup and select the
Security
menu.
► Mark the
TPM Security Chip Setting
fi eld and press the Enter key.
► Select the entry
Enabled
to enable the TPM

Once you have enabled the TPM the
Clear Security Chip
menu item appears.
You can clear the holder in the TPM using
Clear Security Chip
. With
Enabled
,
all secret keys (e.g. SRK - Storage Root Keys, AIK - Attestation Identity Keys
etc.) generated by applications are deleted.
Take note that you can then no longer access the data you have
encrypted on the holder-based keys!
► Select the
Exit Saving Changes
option in the Exit menu.
► Press the Enter key and select
Yes
.

The Tablet PC restarts and the TPM is enabled after the reboot.
Disabling TPM
• Requirement: You have assigned a supervisor password (see "Security functions", Page 64 ).
► Call BIOS Setup and select the
Security
menu.
► Mark the
TPM Security Chip Setting
fi eld and press the Enter key.
► Select the entry
Disabled
to disable the TPM.
► From the
Exit
menu, choose the option
Exit Saving Changes
.
► Press the Enter key and select
Yes
.

The Tablet PC is rebooted and the TPM is disabled.
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