Patent ID: 8117431

Claim:
A method for loading a System Locked Pre-installation (SLP) certification from a basic input output system (BIOS) of a computer, the BIOS comprising a boot block section and a main section for initializing the hardware of the computer after executing the boot block section, the method comprising: determining if a set value in a predetermined address of the boot block section is equal to a preset value upon booting the computer; in response to determining that the set value matches the preset value, executing the main section of the BIOS directly, and the SLP certification being disabled, wherein the predetermined address holds one byte, the set value is 0×55; in response to determining that the set value does not match the preset value, loading the SLP certification into a read only memory (ROM) of the computer before executing the main section of the BIOS to initialize the hardware of the computer, the SLP certification being enabled.