KB4580386 – Windows 10 1903 & 1909 Non-Security Update

Windows 10 receives a new cumulative update KB4580386 for devices running Windows 10 v1903 and v1909. This patch is a non-security update patch that brings some quality fixes and improvements to the device along with the OS Build 18362.1171 and 18363.1171. You can download and install this update either through the Windows Updates or from the Microsoft Update catalog. 

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You can download and install KB4580386 either through the Windows Settings or via the Update Catalog. Now let’s explore the key changes in detail –

KB4580386 – Windows 10 1903 & 1909 Non-Security Update

KB4580386 Changelog for 19H1 and 19H2

Here are the key changes –

Windows 10, 1909

The key changes of this non-security update are –

  • Microsoft has included all the improvements from Windows 10, v1903.

  • And there is no other issue that has been recorded for this release.

Windows 10, 1903

The key changes of this non-security update are –

  • Works on an issue with using Group Policy Preferences to configure the homepage in Internet Explorer. 

  • Allows administrators to use a Group Policy, It will enable Save Target As for users in Microsoft Edge IE Mode. 

  • Addresses an issue with untrusted URL navigations from Internet Explorer 11 by opening them in Microsoft Defender Application Guard using Microsoft Edge. 

  • Microsoft solves an issue that occurs when using the full suite of developer tools in Microsoft Edge for remote debugging on a Windows 10 device. 

  • Addresses an issue that displays a black screen to Windows Virtual Desktop (WVD) users when they attempt to sign in.

  • The company addresses an issue that might prevent a Microsoft Xbox Game Pass user from playing certain games that are eligible for play. 

  • Focuses on an issue that shows nothing on the screen for 5 minutes or more during the Remote Desktop Protocol (RDP) session. 

  • Works on a reliability issue that causes the screen to flash constantly. 

  • Addresses an issue with Dynamic Data Exchange (DDE) that causes a memory leak when multiple clients connect to the same server. 

  • Solves an issue that causes an application to stop responding temporarily. It causes extra z-order operations that affect the Window.Topmost property of a window. 

  • Addresses an issue that might cause DDE apps to stop working. 

  • Works on an issue that occurs when you first sign in to an account or unlock an existing user session using Remote Desktop Services (RDS).

  • Addresses an issue with the CleanupProfiles Group Policy object (GPO).

  • Fix an issue that shows the incorrect CPU frequency for certain processors. 

  • Resolves an issue that occurs when PowerShell reads the registry to check if the ScriptBlockLogging registry key is in the registry. 

  • The team has tries to fix an issue that randomly changes the time offset of the time format returned by the command WMIC.exe OS Get localdatetime/ value

  • Windows 10 team focuses an issue that stops Microsoft User Experience Virtualization (UE-V) from assigning the Microsoft Outlook Signatures. 

  • Focuses an issue that hinder Hybrid Azure Active Directory joined devices from updating portal information when a device name or Windows version changes. 

  • Addresses an issue that causes Windows to stop working and generates error 0x17.

  • Adds a new Microsoft Event Tracing for Windows (ETW) provider named “Microsoft-Antimalware-UacScan”.

  • Addresses issue that causes a USB printer port to disappear after restarting when the printer device is turned power off. 

  • KB4580386 works on an issue that causes stop error 0xd1 in msiscsi.sys.

  • Addresses an issue that prevents Windows Update and Microsoft Store from connecting to peers over virtual private networks (VPN) for downloads. 

  • Adds functionality that shows a preview of the features and capabilities included in an update when a new update is offered to your device.

  • Adds support for the Transport Layer Security (TLS) 1.1 and 1.2 protocols when connecting to SQL Server using the data providers in Windows Defender Application Control (WDAC). 

  • Addresses an issue with SQL Server that might cause performance issues if you configure a Linked Server provider to load out-of-process. 

  • Tech giant works on a problem that might degrade Windows performance and hamper the LanmanServer service from starting when third-party software uses LanmanServer custom file system controls (FSCTL). 

  • Resolves an issue with deduplication that causes long wait times on Resilient File System (ReFS) Cluster Shared Volumes (CSV).

  • Fixed an issue that might stop some applications from working correctly.

  • Windows 10 maker solves an issue with a deadlock in the Transmission Control Protocol/Internet Protocol (TCPIP) driver.

  • KB4580386 solves an issue that causes the Routing and Remote Access Service (RRAS) to stop responding for new connections.

  • Microsoft works on an issue that causes the RRAS administrator Microsoft Management Console (MMC) to stop responding randomly. It happens when you perform administrative tasks or at startup.

  • Works on the improvement of the Windows Server Storage Migration Service by the following:

    • Adding inventory validation.

    • Improving retransfer performance.

    • Resolving multiple issues, including reliability issues.

    • Verifying that source machines have installed the current update.

Issue: 1

With this update, you may encounter a compatibility issue when you try to update your Windows computer to version 1903 or version 1909.

It prompts an error message, “Continuing with the installation of Windows will remove some optional features. You may need to add them back in Settings after the installation completes.” 

This issue generally appears when the local system accounts get blocked in a firewall from accessing the internet connection through HTTP.


You can resolve this issue if your computer has access to HTTP blocked for Local System accounts. 

As a workaround, you can try enabling HTTP access for the Windows 10 Setup Dynamic Update utilizing the LOCAL SYSTEM account. 

Once you allow access, restart the installation of the update and the problem will be fixed.

How to download and install KB4580386 on Windows 10 19H2 & 19H1

Before you proceed, make sure you have installed the latest SSU KB4577670. You can use three methods to get the patch update on your Windows 10 device. Here are the followings:

1] Through Windows update

To download the update through Windows update, use the steps –

  • Right-click on Start and select Settings.
  • Then select Update & Security > Windows Updates.
  • On the right side, click the Check for updates button.
  • Wait for a while until it starts scanning and downloading the update.
  • Once it downloads KB4580386, click on the Install now button to install it.

2] Through Microsoft update catalog

You can also get the update through the Microsoft update catalog. Here are the steps:

  • Navigate to the Microsoft Update Catalog page. 
  • Download and run the standalone package that came along with this release.
  • Then double click on .MSU File to install the update.