KB4592449 for Windows 10 1909 and 1903 update Released

Security update KB4592449 for Windows 10 1903 and 1909 changes, improvements, fixes, direct download links, and the ways to install.


Limited security updates are rolling out in December 2020 due to festive holidays. KB4592449 is the LCU release for Windows 10 v1909 and v1933 this month. This cumulative update mainly includes fixes and improvements for –

You can download KB4592449 using auto Windows update Settings. Moreover, you can get the same as .MSI installer from Microsoft update catalog website. This will help you to manually install the patch whenever you are comfortable. You can take support from – How to Download and Install Update from Microsoft update catalog on Windows 10.

KB4592449 Windows 10 1903 18362.1256 1909 and 18363.1256

Here is the changelog –

Changes and improvements

Windows 10, version 1909

  1. This build includes all the improvements from Windows 10, version 1903.
  2. No additional issues were documented for this release.

Windows 10, version 1903

  1. Addresses a security vulnerability by preventing applications that run as a SYSTEM account from printing to “FILE:” ports. To address this issue in the future, make sure your applications or services run as a specific user or service account.
  2. Security updates to Microsoft Edge Legacy, the Microsoft Graphics Component, Windows Media, Windows Fundamentals, and Windows Virtualization.

Known issues

Symptom Workaround

System and user certificates might be lost when updating a device from Windows 10, version 1809 or later to a later version of Windows 10. Devices will only be impacted if they have already installed any Latest cumulative update (LCU) released September 16, 2020 or later and then proceed to update to a later version of Windows 10 from media or an installation source which does not have an LCU released October 13, 2020 or later integrated. This primarily happens when managed devices are updated using outdated bundles or media through an update management tool such as Windows Server Update Services (WSUS) or Microsoft Endpoint Configuration Manager. This might also happen when using outdated physical media or ISO images that do not have the latest updates integrated.

Note Devices using Windows Update for Business or that connect directly to Windows Update are not impacted. Any device connecting to Windows Update should always receive the latest versions of the feature update, including the latest LCU, without any extra steps.

If you have already encountered this issue on your device, you can mitigate it within the uninstall window by going back to your previous version of Windows using the instructions here. The uninstall window might be 10 or 30 days depending on the configuration of your environment and the version you’re updating to. You will then need to update to the later version of Windows 10 after the issue is resolved in your environment. Note Within the uninstall window, you can increase the number of days you have to go back to your previous version of Windows 10 by using the DISM command /Set-OSUninstallWindow. You must make this change before the default uninstall window has lapsed. For more information, see DISM operating system uninstall command-line options.

We are working on a resolution and will provide updated bundles and refreshed media in the coming weeks.


How to download KB4592449 on Windows 10 20H2 and install

First of all, make sure to install the SSU KB4586863 before starting. Now follow any of the 2 ways –

1] From Auto Windows update

  1. Click the – Start.
  2. Select the – Settings.
  3. Next, choose – Update & Security.
  4. Click the button that reads – Check for updates.
  5. Soon, the system will start to download KB.
  6. As finished, click the – Install now.

2] Via Microsoft update catalog

  1. Go to KB4592449 direct download link – https://www.catalog.update.microsoft.com/Search.aspx?q=KB4592449.
  2. Find the file matching with your system (x64, x86, ARM).
  3. Click on the Download button for the patch.
  4. Right click the MSU installer and select Open.
  5. Follow the onscreen instructions and complete the installation of the patch.

Find your update – Windows 10 Cumulative Updates List.

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Topics:  Windows update
About Sunita
Love to play with Windows 11 and 10. Suggestion - Going for Registry change or system files edit then remember to take a backup or create a restore point before Starting.