I can download microcode updates for Linux from Intel's website, and IIRC Ubuntu has shipped microcode updates before. I know Windows Update does deliver microc

I can download microcode updates for Linux from Intel's website, and IIRC Ubuntu has shipped microcode updates before. I know Windows Update does deliver microcode updates, but thus far I'm unaware of Windows Update distributing any for Spectre. Intel is being very disingenuous when they say "contact your OEM/vendor for microcode updates". In consumer reality, vendors mostly won't provide updates, and even if they do, consumers won't install them. The only practical way to deliver microcode updates to Windows users is through Windows Update, so the real question is when these will make their way to Windows Update.