KB4515384 updates Windows 10 1903 to Build 18362.356 – 10 Sept 2019

Microsoft rolls out a new cumulative update KB4515384 for Windows 10 19H1 users which updates the existing OS to build 18362.356. This is the September Patch Tuesday security updates introduces a series of improvements like Internet Explorer, and input devices such as a mouse, keyboard, or others. It also covers the various input devices such as a mouse, keyboard, or stylus with some other updates for storing and managing files and verifying user names and passwords.

With this patch update, you will receive the quality enhancements but no new operating system features. Besides, you can download KB4515384 as .msi files by visiting the link provided at the end of this guide. However, the company is not currently aware of any issues with the update which is shipping today. Let’s get to the changelog.


General Improvements and fixes on KB4515384

  • Build 18362.356 brings protections against a new subclass of speculative execution side-channel vulnerabilities, identified as Microarchitectural Data Sampling. Though, this sampling is only applicable to 32-bit version Windows. To know more about how to use registry settings, read the articles on Windows Client and Windows Server. The relevant registry entries are enabled by default for either Windows Client OS editions or Windows Server OS editions. You may have a look at the following links to get the better idea-
  • The tech community works on an issue that causes high CPU usage from SearchUI.exe for a small number of users. However, this issue only arises on devices that have disabled searching the web using Windows Desktop Search.
  • The Company uncovers security updates for Microsoft Scripting Engine, Microsoft JET Database Engine, and the Internet Explorer. With the above list, the company addresses security updates for the following Windows components-
Windows App Platform and Frameworks
Windows Input and Composition 
Windows Media 
Windows Fundamentals 
Windows Authentication 
Windows Datacenter Networking 
Windows Virtualization 
Windows Storage and Filesystems 
Windows Wireless Networking 
Windows Kernel 
Windows Server 

How to get this cumulative Update

Before downloading this security patch KB4515384, do run the current SSU on your PC. The latest servicing stack for this patch is KB4515383.

Besides, you will receive a by default notification regarding this patch update through the Windows Update section. However, you can download its standalone package manually through the Update Catalog.

Alternatively, navigate to the following path Settings > Update & Security > Windows Update and hit Check for updates option. 

Source – Microsoft Update Catalog.