Computing device configuration modification prevention system

An Information Handling System (IHS), comprising:

• a BIOS processing system;
• and
• a BIOS memory system that is coupled to the BIOS processing system and that includes instructions that, when executed by the BIOS processing system, cause the BIOS processing system to provide a BIOS lockdown engine that is configured to:
• determine that a BIOS lockdown mode is set;
• configure, in response to determining that the BIOS lockdown mode is set, a BIOS storage subsystem that is coupled to the BIOS processing system to prevent modification of BIOS settings stored in the BIOS storage subsystem;
• execute first BIOS instructions to provide a BIOS and, in response to determining that the BIOS lockdown mode is set, ignore a subset of the first BIOS instructions to access a BIOS settings modification subsystem that is coupled to the BIOS processing system;
• and
• execute second BIOS instructions to provide the BIOS and, in response to determining that the BIOS lockdown mode is set, ignore a subset of the second BIOS instructions to access a BIOS authentication modification subsystem that is coupled to the BIOS processing system.

A method for preventing modification of a configuration of a computing device, comprising:

• determining, by a BIOS lockdown subsystem, that a BIOS lockdown mode is set;
• configuring, by the BIOS lockdown subsystem in response to determining that the BIOS lockdown mode is set, a BIOS storage subsystem to prevent modification of BIOS settings;
• executing, by the BIOS lockdown subsystem, first BIOS instructions to provide a BIOS and, in response to determining that the BIOS lockdown mode is set, ignoring a subset of the first BIOS instructions to access a BIOS settings modification subsystem;
• and
• executing, by the BIOS lockdown subsystem, second BIOS instructions to provide the BIOS and, in response to determining that the BIOS lockdown mode is set, ignoring a subset of the second BIOS instructions to access a BIOS authentication modification subsystem.