Microsoft is also warning, again, that all Windows updates now require the use of a compatible, up-to-date anti-virus program. The company doesn't yet appear to be committing to shipping this update through Windows Update it must still be downloaded and installed manually from the Catalog. Initially, this only covers certain Skylake processors, but Microsoft says it will expand as more microcodes become available. Microsoft is offering a microcode update on the Windows Catalog. For reasons that aren't entirely clear, Microsoft hasn't been offering the latest Intel microcode updates through its driver, leaving the firmware the only option. These drivers are periodically updated to include the latest microcodes. Windows has microcode drivers for Intel and AMD processors and will update their microcode when it starts up. The second route to distribution is through the operating system installing new microcode. The downside is that many vendors do not provide firmware updates for systems more than a few years old, and even when firmware updates are available, they typically need to be manually hunted down and installed. The value this has is that it's independent of the operating system, and it ensures that the system is always using the current microcode when it's in use. The first is system firmware the firmware can update the processor during system boot. Microcode updates have two main distribution channels. Intel has since fixed the microcode bugs, but until this point Microsoft has said that Windows users should turn to their system vendors to actually get the new microcode. 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.
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.Įarlier 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.
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