Windows 10–Windows 10 20H2 Microcode Updates

Posted: November 11, 2020 in Windows 10
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Intel Processor(CPU) microcode update for Windows 10 Version 20H2 addressing multiple security vulnerabilities


  • Windows 10 Version 20H2 Microcode Update were released on September 1 2020(KB4558130)
    • For specific details – see KB article – KB4589212
  • This Intel Microcode update for Windows 10 Version 20H2 address 7 security vulnerabilities
  • Windows 10 Version 20H2 Intel microcode updates with few exceptions are normally stand-alone updates and currently only available in the Microsoft Catalog.
    • A few Intel processors on devices running Windows 10 20H2(and 2004) will receive these updates via Windows Update.
      • To determine if the microcode update will be available in Windows Update for your CPU see the KB article and reference Footnote #2. CPU’s capable of updating microcode via Windows Update are shown in the KB article with a superscripted ‘2’ in the CPU code name field(first column) in the KB table of CPU’s
  • This Microcode update includes previous released microcode updates for applicable CPU’s
  • Applicable to Windows 10 20H2 and for the specific Intel CPU’s shown in the Knowledge Base article

How to Obtain:


Additional information:



Nov 10 2020: Initial Draft

Nov 11 2020: Original Publish Date

Nov 14 2020: Added 3 more links in Additional Information Section

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