Download Windows 10 Cumulative Update KB4343909 Offline Installer

Microsoft has released another cumulative update KB4343909 for Windows 10 April 2018 Update (version 1803) as an August 2018 Patch Tuesday update. For the time being, Microsoft is rolling out Windows 10 updates that address only bug fixes and contain quality improvements, as the entire team is focusing to polish the latest Windows 10 version 1803. KB4343909 Update fixes a bundle of issues in Windows 10.

Apart from the general issues, this latest Windows 10 Patch KB4343909 addresses CVE-2018-3620, CVE-2018-3646, and CVE-2017-5715 vulnerabilities. You can go through the full list of changelog of KB4343909.

With this Windows 10 Cumulative Update, the OS build bumps to 17134.228 that can be verified using Winver command on Windows 10 PC. This latest released Windows update also contains updates for Microsoft HoloLens (OS Build 17134.228).

KB4343909 Offline Installer Cumulative Update, Windows 10 update version 1803

In this blog post, we are providing direct download KB4343909 offline installer links. You can either update Windows 10 version 1803 system via Windows Update or using KB4343909 standalone installer.

Windows 10 cumulative updates links are grabbed from the official repository of Microsoft, therefore these links are safe to use. Download KB4343909 for free and update your Windows 10 system to have better & seamless experience.

If your system is running Windows 10 version 1703, then you will have to download KB4343897 update from another dedicated post.

Changelog of KB4343909 Update

  • Provides protection against a new speculative execution side-channel vulnerability known as L1 Terminal Fault (L1TF) that affects Intel® Core® processors and Intel® Xeon® processors (CVE-2018-3620 and CVE-2018-3646). Make sure previous OS protections against Spectre Variant 2 and Meltdown vulnerabilities are enabled using the registry settings outlined in the Windows Client and Windows Server guidance KB articles. (These registry settings are enabled by default for Windows Client OS editions, but disabled by default for Windows Server OS editions.)
  • Addresses an issue that causes high CPU usage that results in performance degradation on some systems with Family 15h and 16h AMD processors. This issue occurs after installing the June 2018 or July 2018 Windows updates from Microsoft and the AMD microcode updates that address Spectre Variant 2 (CVE-2017-5715 – Branch Target Injection).
  • Addresses an issue that prevents apps from receiving mesh updates after resuming. This issue occurs for apps that use Spatial Mapping mesh data and participate in the Sleep or Resume cycle.
  • Ensures that Internet Explorer and Microsoft Edge support the preload=”none” tag.
  • Addresses an issue that prevents some applications running on HoloLens, such as Remote Assistance, from authenticating after upgrading from Windows 10, version 1607, to Windows 10, version 1803.
  • Addresses an issue that significantly reduced battery life after upgrading to Windows 10, version 1803.
  • Addresses an issue that causes Device Guard to block some ieframe.dll class IDs after installing the May 2018 Cumulative Update.
  • Addresses a vulnerability related to the Export-Modulemember() function when used with a wildcard (*) and a dot-sourcing script. After installing this update, existing modules on devices that have Device Guard enabled will intentionally fail. The exception error is “This module uses the dot-source operator while exporting functions using wildcard characters, and this is disallowed when the system is under application verification enforcement.”
  • Addresses an issue that was introduced in the July 2018 .NET Framework update. Applications that rely on COM components were failing to load or run correctly because of “access denied,” “class not registered,” or “internal failure occurred for unknown reasons” errors.
  • Security updates to Windows Server.

Direct Download KB4343909 Offline Installer

KB4343909 Standalone Package for 32-bit Windows – Download (Size: 410 MB)
KB4343909 Standalone Package for 64-bit Windows – Download (Size: 735 MB)


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