Dell XPS 13 9300, Руководство по обслуживанию, Страница: 45 / 61

Security
PPI Bypass for Enable Commands Enables or disables the OS to skip BIOS Physical Presence Interface (PPI) user
prompts when issuing TPM PPI enabled and activate commands.
Default: OFF
PPI Bypass for Disable Commands Enables or disables The OS to skip BIOS PPI user prompts when issuing TPM PPI
Disable and Deactivate commands.
Default: OFF
PPI Bypass for Clear Commands Enables or disables the operating system to skip BIOS Physical Presence Interface
(PPI) user prompts when issuing the Clear command.
Default: OFF
Attestation Enable Enables to control whether the TPM Endorsement Hierarchy is available to the OS.
Disabling this setting restricts the ability to use the TPM for signature operations.
Default: ON
Key Storage Enable Enables to control whether the TPM Endorsement Hierarchy is available to the OS.
Disabling this setting restricts the ability to use the TPM for storing owner data.
Default: ON
SHA-256 Enables or disables the BIOS and the TPM to use the SHA-256 hash algorithm to
extend measurements into the TPM PCRs during BIOS boot.
Default: ON
Clear Enables or disables the computer to clear the PTT owner information, and returns the
PTT to the default state.
Default: OFF
TPM State Enables or disables the TPM. This is the normal operating state for the TPM when
you want to use its complete array of capabilities.
Default: Enabled
SMM Security Mitigation Enables or disables additional UEFI SMM Security Mitigation protections.
Default: OFF
NOTE: This feature may cause compatibility issues or loss of
functionality with some legacy tools and applications.
Intel SGX Enables or disables the Intel Software Guard Extensions (SGX) to provide a secured
environment for running code/storing sensitive information.
Default: Software Control
Table 8. System setup options—Passwords menu
Passwords
Enable Strong Passwords Enables or disables strong passwords.
Default: OFF
Password Configuration
Admin Password Min Specify the minimum number of characters allowed for Admin password.
Default: 4
Admin Password Max Specify the maximum number of characters allowed for Admin password.
Default: 32
System Password Min Specify the minimum number of characters allowed for System password.
Default: 4
System setup 45