Dell Latitude 7220 Rugged Extreme Tablet Service Manual - Page 72
Secure boot
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Option Absolute OROM Keyboard Access Admin Setup Lockout Master Password Lockout SMM Security Mitigation Secure boot Table 7. Secure Boot Option Secure Boot Enable Secure Boot Mode Expert key Management Description • PPI Bypass for Enable Commands (default) • PPI Bypass for Disable Commands • PPI Bypass for Clear Commands • Attestation Enable (default) • Key Storage Enable (default) • SHA-256 (default) Choose any one option: • Disabled • Enabled (default) This field lets you Enable, Disable or Permanently Disable the BIOS module interface of the optional Absolute Persistence Module service from Absolute Software. • Enabled - This option is selected by default. • Disabled • Permanently Disabled This option determines whether users are able to enter Option ROM configuration screen via hotkeys during boot. • Enabled (default) • Disabled • One Time Enable Allows you to prevent users from entering Setup when Admin password is set. This option is not set by default. Allows you to disable master password support Hard Disk passwords need to be cleared before the settings can be changed. This option is not set by default. Allows you to enable or disable additional UEFI SMM Security Mitigation protections. This option is selected by default. Description Allows you to enable or disable Secure Boot feature • Secure Boot Enable Option is selected by default. Allows you to modify the behavior of Secure Boot to allow evaluation or enforcement of UEFI driver signatures. • Deployed Mode (default) • Audit Mode Allows you to manipulate the security key databases only if the system is in Custom Mode. The Enable Custom Mode option is disabled by default. The options are: • PK (default) • KEK • db • dbx If you enable the Custom Mode, the relevant options for PK, KEK, db, and dbx appear. The options are: • Save to File- Saves the key to a user-selected file • Replace from File- Replaces the current key with a key from a user-selected file 72 System setup