Download KB4343909 Cumulative Update For Windows 10 Version 1803 August 2018

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Microsoft has released KB4343909 cumulative update for Windows 10 Version 1803 April 2018 Update. After installing this update, the complete build number of Windows will become 17134.228. It is recommended that you should always keep your system up to date.

Installing Windows Update in Windows 10 Version 1803 min

Installing Windows Update in Windows 10 Version 1803 min

You can check the current Windows version and build by going to Run –> winver.

In August, Microsoft has released security updates for the following products:

  • Internet Explorer
  • Microsoft Edge
  • Microsoft Windows
  • Microsoft Office and Microsoft Office Services and Web Apps
  • ChakraCore
  • Adobe Flash Player
  • .NET Framework
  • Microsoft Exchange Server
  • Microsoft SQL Server
  • Visual Studio

If you have installed any of these products, you may need to run Windows Update to make sure that all software in your system are up to date including the Operating System itself.

KB4343909

In KB4343909, 3 critical and 18 important vulnerabilities have been fixed. These also include some critical security holes which must be fixed by installing this update as soon as possible. Some of the changes introduced in this release include the following:

  1. Protection against Spectre and Meltdown has been enhanced by fixing a new speculative execution side-channel vulnerability.
  2. The issue with Internet Explorer has been fixed where it stopped working for some sites.
  3. This update fixes the issue preventing apps from receiving mesh updates when they wake up after the computer goes to Sleep mode.
  4. If you are running AMD processor and you have already installed June 2018 or July 2018 update, you should install KB4343909 to fix high CPU usage issue which results in overall performance degradation of the system.
  5. Fixed issue with Device Guard to block some ieframe.dll class IDs after installing May cumulative update.
  6. IE and Edge both support preload=”none” tag. This is helpful for sites which want to disable preloading.
  7. If you get the following error while Device Guard is enabled, you should install this update to fix the issue:
    “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”
  8. The issue with .NET Framework in which COM components would fail to load or run properly because of “access denied” or “class not registered” or “internal failure occurred for unknown reasons” has been fixed.
  9. Fixed issue with Hybrid Azure AD-joined computers where signing in with default domain “AzureAD” may fail when the user is providing only username and password.

How to get KB4343909 update for Windows 10 Version 1803

There are two ways to get this update, either you can get it through Windows Update or you can download and install it manually.

To download and install this update through Windows Update, please go to Settings –> Update & Security –> Windows Update and select Check for updates.

If the update doesn’t show in Windows Update then you can download KB4343909 from below given links and run the installers for installing the update.

Download KB4343909 cumulative update for Windows 10 Version 1803 64-bit [735 MB]

Download KB4343909 cumulative update for Windows 10 Version 1803 32-bit [410 MB]

Before installing KB4343909 update

Before installing any Windows Update, it is always recommended to create a restore point for your safety.

Create a restore point

This should be the default case before installing any update or software on your system. At the very least, if the system get bricked after installing an update, you will be able to revert back to the working point.

On the System Protection tab, enable System Restore and create a restore point manually.

Create a restore point in Windows 10

Create a restore point in Windows 10

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