KB4574727 – Windows 10 1903 Build 18362.1082 & 1909 Build 18363.1082

On the September patch Tuesday, Microsoft has just released a new cumulative update for Windows 10 series 1900 – KB4574727. This is basically a security update that increases the build version of Windows 10 1903 to 18362.1082 and 1909 to 18363.1082. With this patch, Microsoft updates the security improvement for Windows performs basic operations, input devices, and Microsoft Office Products. The company has also worked on a security vulnerability issue with user proxies and HTTP-based intranet servers.

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You can either download KB4574727 update manually or let Windows do it for you. In order to check the complete list of the patch, open Windows 10 Cumulative Updates.  Let’s explore the key changes in detail –


KB4574727 – Changelog for 19H1 and 19H2

Here are the key changes that developers perform on OS Build 18362.1082 & 18363.1082 –


Windows 10, 1903

The key changes of this security update are –

  • In this security update, the company has included all the improvements from Windows 10, v1903.
  • There is no such additional documentation made for this release.

Windows 10, 1909

The key changes of this security update are –

  • With this update, Microsoft has worked on the security vulnerability problem with user proxies and HTTP-based intranet servers. Once you download and install this cumulative update, HTTP-based intranet servers cannot leverage a user proxy by default to detect updates.
  • The company includes security updates for the following:

Windows App Platform and Frameworks, Microsoft Graphics Component, Windows Input and Composition, Windows Media, Windows Shell, Windows Cloud Infrastructure, Windows Fundamentals, Windows Management, Windows Kernel, Windows Virtualization, the Microsoft Scripting Engine, and the Microsoft JET Database Engine.

KB4574727 Known Issues

Microsoft is currently not aware of any issues with this update.

How to Get this Update

In order to grab this security patch, you can use any of the following methods –

  1. Windows Update: If your computer receives the patch update KB4574727, you will get the related notification automatically. To avoid any lagging problem while updating your device, you must have to download and install the latest SSU KB4576751 first.
  2. Standalone Package: If you can’t wait, go to the Microsoft Update Catalog. Then download and run the standalone package that came along with this release. Also, make sure to check your system architecture before you start downloading the .msu file. 
  3. WSUS: The cumulative update KB4574727 will automatically sync with WSUS if you configure Products and Classifications as follows –
    • Product: Windows 10, version 1903 and 1909
    • Classification: Security Updates

Source – Update Catalog