[Solved] KB5019180 Intel MMIO skipped on Windows 10
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I suggest keeping them because people are installing Windows 10 on old hardware and many are installing LTSC, keep them in the downloader ticked by default, or unticked if you prefer, add a hyperlink to an appropriate ms/intel article and let users decide if they need them or not.
My new old stock Lenovo X270 laptop(i5 6300U purchased January this year) came with w10 Pro 1809 installed from the factory (i later installed 21H2 LTSC). I only know of IMMIO because the downloader listed it assuming they would be included in the CU's.
My new old stock Lenovo X270 laptop(i5 6300U purchased January this year) came with w10 Pro 1809 installed from the factory (i later installed 21H2 LTSC). I only know of IMMIO because the downloader listed it assuming they would be included in the CU's.
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Microsoft Update Catalog's details for KB5019180 don't confirm it's been superseded.
The MSU package contains only one file: mcupdate_genuineintel.dll
Searching KB5066791 (Oct. 2025)'s file information, this DLL isn't present. So it's still a separate fix that may be required.
The MSU package contains only one file: mcupdate_genuineintel.dll
Searching KB5066791 (Oct. 2025)'s file information, this DLL isn't present. So it's still a separate fix that may be required.
It is a vital security update if you have the appropriate hardware and can be disabled if needed. To be honest, if you aint gaming or benchmarking i have never noticed a difference whether its enabled or disabled. Despite good intentions and being vigilant you might still have or get a bogey on your system that once infected you wont be able to get rid of.
If you're running in a secure environment, like an enterprise or organization, it's required to apply all known security fixes.
NTLite allows you to remove the microcode component from an image. In addition, you can suffer through the dense MS docs and figure out a set of reg keys which disable the different CPU mitigations.
NTLite allows you to remove the microcode component from an image. In addition, you can suffer through the dense MS docs and figure out a set of reg keys which disable the different CPU mitigations.
Equally important for online shopping and especially online banking(which i refuse to do).
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If the mcupdate_genuineintel.dll file isn't up to date, then Windows will use the Management Engine Interface firmware version (if it's up to date, of course).
Easy to check under Windows which version is "in use"
SSD performance may be affected. In the last tests we conducted and on suitable sites, some SSDs had lost up to 20%.
And since, Intel has tried to correct this performance drop
Easy to check under Windows which version is "in use"
Yes, for those who don't play or benchmark, the difference won't be noticeable.
SSD performance may be affected. In the last tests we conducted and on suitable sites, some SSDs had lost up to 20%.
And since, Intel has tried to correct this performance drop
How does the CPU microcode relate to the MEI firmware? They're separate firmware for two different processors (on the same chip). Windows can't force an MEI update if you're missing the MEI driver (which is not that uncommon after a clean install).
Earlier versions of Windows had their own microcode releases. Some got rolled into later CU's, and others were never integrated.
June 2015 Intel CPU microcode update for Windows
