Citing the author of the me_cleaner: For pre-Skylake firmware (ME version < 11) this tool removes almost everything, leaving only the two fundamental modules needed for the correct boot, ROMP and BUP. The code size is reduced from 1.5 MB (non-AMT firmware) or 5 MB (AMT firmware) to ~90 kB of compressed code.

Starting from Skylake (ME version >= 11) the ME subsystem and the firmware structure have changed, requiring substantial changes in me_cleaner. The fundamental modules required for the correct boot are now four (rbe, kernel, syslib and bup) and the minimum code size is ~300 kB of compressed code (from the 2 MB of the non-AMT firmware and the 7 MB of the AMT one).



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