In some embodiments, the invention involves a system and method relating to switching to protected mode to access extended memory while executing instruction code that is designed for real mode memory access. In at least one embodiment, the present invention is intended to enable complex option-ROM code to be executed during pre-boot without corrupting system memory used by the BIOS or other option-ROMs. Other embodiments are described and claimed.

 
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> Methods and apparatus for providing seamless file system encryption and redundant array of independent disks from a pre-boot environment into a firmware interface aware operating system

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