ssIt also talks about checking whether the two microcode files are different sizes, and I’m supposed to be able to see this in the hex editor? I used the “fastforward” button in the data inspector window on the right in HxD, but I don’t see anything obvious indicating file size. I then have successfully opened it in HxD hex editor where I see all the hex values.Īt this point I am the tutorial starts talking about a “CPU microcode repository” and I’m not sure whether that is even relevant to what I’m trying to do, which is to replace the newer bios microcode with the 0x104 microcode. The tutorial says to open the master microcode file in HxD editor, so I’m assuming that’s what this file is. Per the tutorial, I right-clicked it and “extract body” and saved it as File_Raw_Microcode_body.raw. I have opened every single section of the list and there is only one microcode file (and it matches the GUID(?) from the tutorial, so I’m sure I have the right thing.

So I have opened the bios file (with the microcode I want to edit) into in UEFITool NE Alpha 51. Apparently I am supposed to find a 0x104 Intel microcode and replace it into bios.

For android download UEFITool A68