Windows 10: Microcode Updates February 2019

Microsoft has released microcode updates for Windows 10 V1607 through 1809. These are revised versions of Intel Microcode Updates that will be rolled out in February 2019.


An overview of the Intel Microcode updates (for Windows Server 2016 and Windows 10 Version 1607) can be found in the following KB articles.

The Intel microcode updates address the following side channel attacks.

  • Spectre Variant 3a (CVE-2018-3640: "Rogue System Register Read (RSRE)")
  • Spectre Variant 4 (CVE-2018-3639: "Speculative Store Bypass (SSB)")
  • L1TF (CVE-2018-3620, CVE-2018-3646: "L1 Terminal Fault")

Intel Microcode updates are available for download from the Microsoft Update Catalog. (via)

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