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  • Microsoft re-releases Intel microcode patches for all versions of Win10

    Home Forums AskWoody blog Microsoft re-releases Intel microcode patches for all versions of Win10

    This topic contains 7 replies, has 5 voices, and was last updated by  anonymous 2 weeks, 2 days ago.

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    • #217509 Reply

      woody
      Da Boss

      Last night, Microsoft released these new Intel microcode patches: KB 4100347 for Win10 1803 KB 4090007 for Win10 1709 KB 4091663 for Win10 1703 KB 409
      [See the full post at: Microsoft re-releases Intel microcode patches for all versions of Win10]

      1 user thanked author for this post.
    • #217607 Reply

      Sueska
      AskWoody Lounger

      Was just offered KB4100347 for Windows 10 1803 today. My Win 10 is a test system set up to ask to download using group policy. The original microcode patch was installed in May 2018 with no issues (I believe it was obtained from the MS catalog). Since this is a test machine, I allowed the newly re-issued patch to install. No issues noted.
      I have not tried to uninstall, but wanted to mention that the kb# is listed as an update available for uninstall in windows update. Running Steve Gibson’s Inspectre utility indicates “Yes” for protection from Spectre and Meltdown, and of course “Slower” for performance. My system is an i5 Intel 64 bit.

    • #217635 Reply

      gborn
      AskWoody MVP

      FYI – some more details Windows 10: Microcode updates (09/13/2018) & WSUS chaos

      1 user thanked author for this post.
    • #217687 Reply

      EP
      AskWoody Lounger

      article from Softpedia news by Bogdan Popa about the re-released KB4100347 & other Intel microcode updates for Windows 10:
      https://news.softpedia.com/news/microsoft-re-releases-kb4100347-for-windows-10-version-1803-522694.shtml

    • #229601 Reply

      anonymous

      Loads WRONG microcode revision!

      Windows 10 KB4100347 contains a new Intel microcode library to address Spectre vulnerabilities.

      On a Broadwell E processor (CPUID 406F1) this library loads microcode revision 0xB00002C at boot. However, Intel has only released microcode revision 0xB00002E as per Microcode Update Guidance dated Aug 2018!

      Final note:
      It is widely known by now that KB4100347 breaks the overclocking capabilities with most X99 motherboard / Broadwell E combos. While incorporating the new microcode into the BIOS may be a remedy on some systems, this is out of reach for most users.

    Please follow the -Lounge Rules- no personal attacks, no swearing, and politics/religion are relegated to the Rants forum.

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