Are you looking to use this tool for a specific mod, like or a CPU microcode update ?
This is perhaps the most common reason for using MMTool today. Many Z77 and Z87 motherboards do not natively support booting from an NVMe M.2 drive. By using MMTool to insert the NvmeExpressDxE module into the original BIOS file, users can enjoy modern storage speeds on "legacy" hardware. 2. CPU Microcode Updates MMTOOL 4.50.0.23.7z
The version is particularly popular because it strikes a balance between stability and compatibility with older Aptio 4 firmware structures, which were common during the Sandy Bridge, Ivy Bridge, and Haswell CPU eras. Key Capabilities Unlocking Firmware Customization: A Complete Guide to MMTOOL