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Esteemed Contributor III

FYI Only: Latest Windows Update KB4093112 (OS Build 16299.371) for Version 1709 includes one Fix for AMD CPU Flaw

April 10, 2018—KB4093112 (OS Build 16299.371)

Applies to: Windows 10 version 1709


Improvements and fixes


This update includes quality improvements. No new operating system features are being introduced in this update. Key changes include:

  • Provides support to control usage of Indirect Branch Prediction Barrier (IBPB) within some AMD processors (CPUs) for mitigating CVE-2017-5715, Spectre Variant 2 when switching from user context to kernel context (See AMD Architecture Guidelines around Indirect Branch Control and AMD Security Updates for more details). Follow instructions outlined in KB4073119 for Windows Client (IT Pro) guidance to enable usage of IBPB within some AMD processors (CPUs) for mitigating Spectre Variant 2 when switching from user context to kernel context.
  • Addresses an issue that causes an access violation in Internet Explorer when it runs on the Microsoft Application Virtualization platform.
  • Addresses an issue in Enterprise Mode related to redirects in Internet Explorer and Microsoft Edge.
  • Addresses an issue that generates an access violation on certain pages in Internet Explorer when it renders SVGs under a high load.
  • Addresses additional issues with updated time zone information.
  • Addresses an issue that might cause the App-V service to stop working on an RDS server that hosts many users.
  • Addresses an issue where user accounts are locked when applications are moved to a shared platform using App-V (e.g., XenApp 7.15+ with Windows Server 2016, where Kerberos authentication isn't available).
  • Addresses an issue with printing content generated by ActiveX in Internet Explorer.
  • Addresses an issue that causes document.execCommand("copy") to always return False in Internet Explorer.
  • Addresses an issue that, in some instances, prevents Internet Explorer from identifying custom controls.
  • Security updates to Internet Explorer, Microsoft Edge, Windows kpp platform and frameworks, Microsoft scripting engine, Windows graphics, Windows Server, Windows kernel, Windows datacenter networking, Windows wireless networking, Windows virtualization and Kernel, and Windows Hyper-V.

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Esteemed Contributor III

Re: FYI Only: Latest Windows Update KB4093112 (OS Build 16299.371) for Version 1709 includes one Fix for AMD CPU Flaw

According to ZDNET, This Windows 10 Patch was for AMD's new Microcodes update that will be coming soon in BIOSes updates.:Windows 10 on AMD? This new update plus Microsoft's patch block Spectre attacks | ZDNet

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Big Boss
Big Boss

Re: FYI Only: Latest Windows Update KB4093112 (OS Build 16299.371) for Version 1709 includes one Fix for AMD CPU Flaw

windows 10  v 1803 already fixes all those problems

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Esteemed Contributor III

Re: FYI Only: Latest Windows Update KB4093112 (OS Build 16299.371) for Version 1709 includes one Fix for AMD CPU Flaw

Does Windows 10 v1803 also fix BIOSes?

I far as I know everyone not in the Preview Program doesn't have Windows 10 v1803. Besides, this update was probably included in Windows 10 v1803 but since no one in the general public have version 1803 the Post still is relevant. Besides, not everyone is going to upgrade to the new version.

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Big Boss
Big Boss

Re: FYI Only: Latest Windows Update KB4093112 (OS Build 16299.371) for Version 1709 includes one Fix for AMD CPU Flaw

Windows has some workarounds and as for a BIOS that is up to the motherboard/machine vendor

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Esteemed Contributor III

Re: FYI Only: Latest Windows Update KB4093112 (OS Build 16299.371) for Version 1709 includes one Fix for AMD CPU Flaw

This Windows update is to prepare Windows for when AMD releases the new Microcodes to the motherboard manufacturer's so that they can update the BIOS for a new BIOS release.

My post was strictly FYI Only and nothing more.

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