https://arstechnica.com/gadgets/2018/03/microsoft-will-soon-start-shipping-the-intel-spectre-microcode-fixes/

Windows users running the latest version of Windows 10 on recent Intel processors will soon be receiving Intel's microcode updates to address the Spectre variant 2 attack.

Earlier this year, attacks that exploit the processor's speculative execution were published with the names Meltdown and Spectre, prompting a reaction from hardware and software companies. Intel released microcode updates for its processors to provide operating systems with greater control over certain aspects of this speculative execution; however, the company's initial releases were found to cause problems.