KB4586839 Non-Security Update for Windows 10 1809 17763.1613

Windows 10 receives a new cumulative update KB4586839 for devices running Windows 10 1809. This is a non-security update patch brings some improvements and fixes to the device along with the OS Build 17763.1613. It includes a list of fixes and changes that addresses some quality improvements when using Microsoft Office products and some Windows basic operations.

You can see the complete list of the latest cumulative updates if you are on some other version of Windows 10.

KB4586839 Non-Security Update for Windows 10 1809 17763.1613

KB4586839 – Fixes and Improvements

This is a non-security update that includes some quality improvements. Key changes include –

  • Microsoft team has updated the Internet Explorer About dialog to use the standard modern dialog. 
  • The problem in Chromium-based Edge browser has been fixed that open it in the background when a device is in tablet mode. 
  • The hard drive related problem is resolved in this update.
  • Works on the issue related to USB 3.0 hubs. 
  • Fixed an issue that causes error 0x57.
  • Microsoft worked on an issue that causes applications to fail when they call the LookupAccountSid() API.
  • With this update, the company has resolved an issue that causes Windows Defender Application Control to create multiple events related to dynamic code generation. 
  • The software giant worked on an issue that might cause a non-paged pool memory leak in a Remote Desktop Protocol (RDP) over a virtual private network (VPN) scenario. 
  • Worked on “I forgot my Pin” functionality on the lock screen. 
  • The startup problem in the computer has been resolved with this update.
  • Windows maker has worked on an issue that hinders access to Azure Active Directory (AD) using the Google Chrome browser because of a Conditional Access policy error. 
  • With this update, Microsoft Management Console (MMC) Group Policy application will not stop while editing the Group Policy Security settings. It used to occur with an error message “MMC cannot initialize the snap-in.” 
  • The company has worked on an issue that fails to free a system’s non-paged pool and needs a restart of the system.
  • Windows 10 team extends Microsoft Defender for Endpoint support to new regions. 
  • The team has worked on high memory and CPU utilization in Microsoft Defender for Endpoint. 
  • Worked on an issue in the Microsoft Remote Procedure Call (RPC) runtime. Because of this problem, the Distributed File System Replication (DFSR) service used to stop responding.
  • Microsoft team has tried solving the issue that might cause Dynamic Host Configuration Protocol (DHCP) servers to ignore Link Selection information (DHCP Option 82, sub-option 5) in DHCP Request packets from clients. 
  • Addresses an issue that hinders the PDF24 app, version 9.1.1, from opening .txt files. 
  • The memory leak problem in bindflt.sys has been solved with this update.
  • The non-security update KB4586839 focuses on an issue with Active Directory Certificate Services (AD CS) that might hinder Certificate Transparency (CT) logs from being submitted if enabled. 
  • Microsoft has worked on an issue that fails to implement the terminal services (termsrv.dll) idle timeout settings. 
  • The problem related to the User Datagram Protocol (UDP) rate controller feature is solved. So, from now onwards the Remote Desktop Services (Terminal Services) will not intermittently stop working.
  • In this update, the team has corrected the Canonical Display Driver (CDD) buffer flushing. 

Known issues in this update

Known issues in this update are:


Some users encountered the error, “0x800f0982 – PSFX_E_MATCHING_COMPONENT_NOT_FOUND.”, after installing KB4493509, devices with some Asian language packs.


You can do the following to fix this issue:

  1. First of all, uninstall and reinstall any recently added language packs.
  2. Then check for updates and install the April 2019 Cumulative Update.

Note If reinstalling the language pack does not solve the issue, then reset your PC as follows:

  • Open Settings app using Windows + I keys. Then go to Update & Security > Recovery.
  • Under the Reset this PC recovery option,  select the Get Started option.
  • Then Select Keep my Files.

How to download and install KB4586839

You will receive a notification regarding this KB4586839 update via Windows Update. If not, you may try either of the following ways –

Note: Before you try any methods, make sure you have installed the latest servicing stack i.e. (KB4587735) on your computer.

1] Windows Update

  • Open the Settings app and then go to Update & Security > Windows Update > View optional updates.
  • Here find the link to download and install the update.
  • Once you find it, click on the given link to download/install the latest cumulative update.
  • If a pop-up asks to restart your computer, do it. This will ensure that the latest version removes the old version and relevant files.

2] Microsoft Update Catalog

  • Go to the Microsoft Update Catalog page.
  • Scroll down and select the non-security patch that suits your system architecture.
  • Next, click the download button.
  • Open the folder containing the downloaded file, and then double-click the setup. 
  • This will upgrade the Windows 10 1809 Build version 17763.1613.

Release Note

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