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On Windows you'll have to delete C:\Windows\System32\mcupdate_GenuineIntel.dll to prevent Windows applying Intel microcode updates. Whatever microcode is in the
by nullify88 5y ago
On Windows you'll have to delete C:\Windows\System32\mcupdate_GenuineIntel.dll to prevent Windows applying Intel microcode updates. Whatever microcode is in the bios, it will use that.
There are also ways to modify the BIOS to update or downgrade its microcode.
My gaming PC, a Sandy Bridge i7-2600k, has had 20 microcode updates between 2010 to 2019.
The majority were in 2013 until the spectre mitigations came in 2018.
The last bios update for my mobo contains microcode 2 versions behind the spectre updates.
Feed a BIOS image in to this tool to view microcode information.
https://github.com/platomav/MCExtractor https://github.com/platomav/MCExtractor