Dell OptiPlex 7071 Tower Tower Setup and specifications guide - Page 27

Secure boot options Table 27. Secure Boot Option Secure Boot Enable Description Allows you to enable or disable Secure Boot feature • Secure Boot Enable This option is not selected by default. Secure Boot Mode Allows you to modify the behavior of Secure Boot to allow evaluation or enforcement of UEFI driver signatures. • Deployed Mode (default) • Audit Mode Expert key Management 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 • Append from File- Adds a key to the current database from a user-selected file • Delete- Deletes the selected key • Reset All Keys- Resets to default setting • Delete All Keys- Deletes all the keys NOTE: If you disable the Custom Mode, all the changes made will be erased and the keys will restore to default settings. Intel Software Guard Extensions options Table 28. Intel Software Guard Extensions Option Intel SGX Enable Description This field specifies you to provide a secured environment for running code/storing sensitive information in the context of the main OS. The options are: • Disabled • Enabled • Software controlled-enabled by default Enclave Memory Size This option sets SGX Enclave Reserve Memory size. The options are: • 32 MB • 64 MB • 128 MB-enabled by default System setup 27