[How to] Update microcode from Windows.

Should I take that as a "Yes" to the 1st question?

EDIT: nvm I checked online and now I understand that it has to be done for every OS reinstallation.

 

Heads up, build 17074 (current slow/fast ring) breaks support.

edit: hmm, actually it's working on one of my machines, but not another. Both on the same build...

"The cpumcupdate service failed to start due to the following error:
cpumcupdate is not a valid Win32 application."

 

Hi

The Intel Linux microcode file (microcode-20180703.tgz) isn't as updated as a GitHub repository here and my own latest microcode (306D4 rev 0x2B) was added from r72 onwards.

However, the microcode updates are already .bin with a different set of filenames to the unzipped Linux ones, therefore I can't seem to make the .dat Extractor tool work.

Anyone know how?

Edit: Never mind, I renamed the 0x2B .bin to the 06-3d-04 filename, recompiled the microcode.dat and it works!

Now I just need to workout how to validate the get-SpeculationControlSettings output.

 

For everyone stumbling across this thread and wondering:
- yes, the latest Intel updates lack the consolidated microcode.dat
- yes, there is a workaround to get the microcode.dat from the single files - thanks to Jakob Klein who developed this nifty tool https://1drv.ms/f/s!AgP0NBEuAPQRpdoWT_3G3XCdotPmWQ

And in general: if you use an Intel based system, feel free ot just create empty text files and name them like the AMD's microcode files (microcode_amd.bin and microcode_amd_fam15h.bin), since the AMD files won't be used on an Intel system ;-)

Thank you very much to http://wp.xin.at/archives/tag/intel-microcode-dat-converter for pointing out this solution!

 

See here Intel/AMD uCode fix for Spectre, HT bug fix and Meltdown.
Already added Ryzen and Amd ucodes till May 05 2018.
Used the same tool by Mr. Klein.