MMTool_4.50.0.23.exe (Aptio IV only).
MMTool allows users to interact with the individual components, or "modules," of a BIOS file without needing to rebuild the entire ROM from scratch. Key capabilities include: Module Management : Extracting, replacing, and inserting EFI modules such as DXE drivers and PEI modules. Microcode Updates : Replacing or adding CPU microcode mmtool+aptio+4500023
The error forces you to clean up dead modules before inserting new ones. MMTool_4