Windows 10: Cumulative Update KB4343909 Windows 10 v1803 Build 17134.228 - Aug. 14

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  1. Brink's Avatar
    Posts : 32,261
    64-bit Windows 10 Pro build 18242
       14 Aug 2018 #1

    Cumulative Update KB4343909 Windows 10 v1803 Build 17134.228 - Aug. 14


    UPDATE 8/30: Cumulative Update KB4346783 Windows 10 v1803 Build 17134.254 - Aug. 30 - Windows 10 Forums

    August 14, 2018 - KB4343909 (OS Build 17134.228)

    Applies to: Windows 10, version 1803


    Note This release also contains updates for Microsoft HoloLens (OS Build 17134.228) released August 14, 2018.

    Improvements and fixes

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

    • Provides protections 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.” For more information, see https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8200 and https://aka.ms/PSModuleFunctionExport.
    • [ADDED 8/22] 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.
    • [ADDED 8/22] Addresses a vulnerability issue by correcting the way that the .NET Framework handles high-load or high-density network connections. For more information, see CVE-2018-8360.
    • Security updates to Windows Server.

    If you installed earlier updates, only the new fixes in this package will be downloaded and installed on your device.

    For more information about the resolved security vulnerabilities, see the Security Update Guide.

    Known issues in this update

    Symptom Workaround
    [ADDED 8/15] Launching Microsoft Edge using the New Application Guard Window may fail; normal Microsoft Edge instances are not affected. If you’ve experienced the issue and already installed KB4343909, uninstall it.

    1. Install KB4340917.
    2. Install KB4343909.

    Microsoft is working on a resolution and will provide an update in an upcoming release.

    How to get this update

    This update will be downloaded and installed automatically from Windows Update.

    To get the standalone package for this update, go to the Microsoft Update Catalog website.

    File information

    For a list of the files that are provided in this update, download the file information for cumulative update 4343909.


    Source: https://support.microsoft.com/en-us/...date-kb4343909


    Direct download links for KB4343909 MSU file from Microsoft Update Catalog:

    Download KB4343909 MSU for Windows 10 v1803 32-bit (x86) - 410.1 MB

    Download KB4343909 MSU for Windows 10 v1803 64-bit (x64) - 734.8 MB


    Last edited by Brink; 2 Weeks Ago at 22:25.
      My ComputersSystem Spec

  2. magilla's Avatar
    Posts : 1,865
    Windows 10 and windows insider
       14 Aug 2018 #1

    downloading now.
      My ComputerSystem Spec

  3.    14 Aug 2018 #2

    Getting it right now.
      My ComputerSystem Spec

  4.    14 Aug 2018 #3

    Succesfully installed em,lets hope this update will fix devicenus/windows update medic crashes in reliabilty log.
      My ComputerSystem Spec

  5.    14 Aug 2018 #4

    I don't mean to be rude, but

    downloading now
    Getting it right now
    I'm on it now!

    does not really enrich the thread
      My ComputerSystem Spec

  6.    14 Aug 2018 #5

    Shiekh said: View Post
    I don't mean to be rude, but

    downloading now
    Getting it right now
    I'm on it now!

    does not really enrich the thread
    Does your post?

    And with that.. it's installed and no issues to report.
      My ComputerSystem Spec

  7.    14 Aug 2018 #6

    I have just installed it on a fresh formatted PC. I checked WU and it was there...
      My ComputerSystem Spec

  8. no1yak's Avatar
    Posts : 96
    Win 10 Pro 64x 1803 17348
       14 Aug 2018 #7

    Downloaded and installed, At this time no problems seen.

    Waiting to see what this update brings.
    .Click image for larger version. 

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      My ComputersSystem Spec

  9.    14 Aug 2018 #8

    Let's see: I've got 4 machines to upgrade. Three of them underway, still have to get to fourth machine. I notice that the cumulative update goes first, Adobe Flash second, and MSRT last (all of which go pretty quickly, especially the MSRT which can sometimes take several minutes to complete). To restart on 2 of 3, got an error code 0x800705af on the T520 Lenovo. Trying again...
    --Ed--

    [PS Added 40 mins later:] After several retries with WU, I switched to the catalog item for the cumulative update. Took FOREVER for it to start making progess, but it's now about 70% installed, and looks likely to complete successfully. Wonder where the issues came from on this particular PC (Lenovo T520 laptop), which is usually trouble-free. Very interesting! Completed successfully as I was writing this, now in the post-reboot processing phase.

    [PPS Added 1 hr later:] The fourth machine updated without any issues, and the "problem PC" successfully updated after applying the cumulative update manually. Ran DISM /ONLINE /CLEANUP-IMAGE /STARTCOMPONENTCLEANUP successfully on my wife's PC without checking for space savings on that machine. Running it again now on the X220 Tablet for more complete figures.

    [PPSS Added 1.5 hr later:] Results of startcomponentcleanup:
    1. Reported size before: 7.9 GB after: 6.85 GB
    2. Actual size before: 7.5 GB after: 6.7 GB
    3. Shared with Windows before: 5.97 GB after: 5.91 GB
    4. Backups & disabled features before: 1.28 GB after: 544 MB
    5. Cache & Temporary data before: 241 MB after: 240 MB
    Last edited by EdTittel; 14 Aug 2018 at 14:08.
      My ComputersSystem Spec

  10.   My ComputerSystem Spec


 
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