Dell OptiPlex 7071 Tower Tower Service Manual - Page 74

Secure boot options

Page 74 highlights

Option Chassis Intrusion OROM Keyboard Access Admin Setup Lockout Master Password Lockout SMM Security Mitigation Description • Permanently Disabled This field controls the chassis intrusion feature. The options are: • Disabled-enabled by default • Enabled • On-Silent This option determines whether users can enter Option ROM Configuration screens through hotkeys during the system boot. • Disabled • Enabled-enabled by default • One Time Enable Allows you to prevent users from entering the setup when Admin password is set. This option is disabled by default. When enabled, this option disables master password support. This option is disabled by default. Allows you to enable or disable another UEFI SMM Security Mitigation protections. This option is disabled by default. Secure boot options Table 7. Secure Boot Option Secure Boot Enable Secure Boot Mode Expert key Management Description Allows you to enable or disable Secure Boot feature • Secure Boot Enable This option is not 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 • 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. 74 System setup

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Option
Description
Permanently Disabled
Chassis Intrusion
This field controls the chassis intrusion feature.
The options are:
Disabled—enabled by default
Enabled
On-Silent
OROM Keyboard Access
This option determines whether users can enter Option ROM Configuration screens through
hotkeys during the system boot.
Disabled
Enabled—enabled by default
One Time Enable
Admin Setup Lockout
Allows you to prevent users from entering the setup when Admin password is set. This option is
disabled by default.
Master Password Lockout
When enabled, this option disables master password support. This option is disabled by default.
SMM Security Mitigation
Allows you to enable or disable another UEFI SMM Security Mitigation protections. This option is
disabled by default.
Secure boot options
Table 7. Secure Boot
Option
Description
Secure Boot Enable
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 Key
s- 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.
74
System setup