About

KB5015880 Optional Update for Windows Server 2019

KB5015880 is the optional update for Windows Server 2012 that was released on 21st July 2022. This preview update was released one week after the release of ‘Patch Tuesday’ updates. We look at the key aspects of KB5015880 optional update for Windows Server 2019.

Salient points about KB5015880 for Windows Server 2019

  • KB5015880 is a cumulative update and contains all the changes that are part of the July month’s cumulative update KB5015811. You can read more about KB5015811 in detail on this page.
  • KB5015880 will upgrade the build of Windows Server 2019 to OS Build 17763.3232.
  • KB5015880 also brings in quality improvements on Windows Server 2019.
  • Before deploying KB5015880 on Windows Server 2019, you need to deploy KB5005112 Servicing Stack update that was released in August 2021.
  • All changes that are part of KB5015880 for Windows Server 2019 will become a part of the next month’s ‘Patch Tuesday’ updates. Next cycle of ‘Patch Tuesday’ updates will be released on 9th August, 2022.
  • You can choose to skip KB5015880 and instead wait for August month’s ‘Patch Tuesday’ updates.

Prerequisites for installing KB5015880 on Windows Server 2019

KB5015880 supersedes KB5015811. You can deploy it on a Windows Server that has been patched with KB5015811.

Before installing KB5015880, you need to deploy SSU KB5005112 on the Windows Server 2019. KB5005112 is the Servicing Stack Update for Windows Server 2019 that was released in August 2021. KB5005112 can be downloaded from the Microsoft Update Catalog page for KB5005112. The size of the update file is 13.8 MB only.

It may be pertinent to mention that the Servicing Stack Updates do not cause server restarts.

How can I deploy KB5015880 on Windows Server 2019?

KB5015880 can be deployed through Windows Update or Microsoft Update Catalog. KB5015880 cannot be deployed using WSUS (Windows Server Update Service) or Microsoft Update for Business.

  • To install KB5015880 on Windows Server 2019 using Windows Update, you will need to find the ‘Optional Updates Available’ under Windows Update.
  • You can apply KB5015880 manually on Windows Server 2019. You will need to download the MSU update file that corresponds to KB5015880 for Windows Server 2019. KB5015880 update file is available for download from this page.
  • The size of MSU update file is 578.3 MB.

You may have to plan for a maintenance window to patch KB5015880 because the server may require a reboot post-deployment of KB5015880 on Windows Server 2019.

Quality improvements in KB5015880 for Windows Server 2019

Optional updates contain performance improvements. KB5015880 is the optional update for Windows Server 2019 that has achieved the following improvements:

  • Addresses an issue that prevents certain troubleshooting tools from opening.
  • Addresses an issue that causes port mapping conflicts for containers.
  • Addresses an issue that causes Code Integrity to continue trusting a file after the file has been modified.
  • Provides the option to configure an alternate login ID for an Azure Multi-Factor Authentication (MFA) Active Directory Federation Services (AD FS) adapter for on-premises scenarios.
  • Addresses an issue that triggers lockout policies faster when you use Remote Desktop Protocol (RDP) with fast reconnect and Network Level Authentication (NLA) is disabled. This issue occurs when you call LogonUser() with a blank password.
  • Addresses an issue that prevents the Storage Migration Service (SMS) from completing inventory on servers that have many shares.
  • Addresses an issue that causes Microsoft’s deduplication driver to consume large amounts of nonpaged pool memory. Consequently, this depletes all the physical memory on the machine, which causes the server to stop responding.
  • Addresses an issue that prevents enterprise users from opening sites on-demand in IE mode using Microsoft Edge.

If you choose to skip installing KB5015880 optional update, all these improvements would automatically be a part of August month’s cumulative update for Windows Server 2019.

Unresolved issues on Windows Server 2019

There are a few unresolved issues on Windows Server 2019. These issues have arisen out of deployment of updates on the server in the past.

  • After installing KB4493509, devices with some Asian language packs installed may receive the error, “0x800f0982 – PSFX_E_MATCHING_COMPONENT_NOT_FOUND.” This issue is unresolved as of now. Temporary workarounds have been provided by Microsoft to mitigate the situation.
  • After installing KB5001342 or later, the Cluster Service might fail to start because a Cluster Network Driver is not found. The mitigation for this issue has been shared in KB5003571.
  • After installing this or later updates on devices running 32-bit versions of Windows, you might be unable to open Microsoft Edge. The mitigation lies in upgrading Edge to stable version 103.0.1264.62 or later.

Summary

KB5015880 for Windows Server 2019 is an optional update that follows up with the previous update KB5015811. It offers quality improvements and is available for application through Windows Update or Microsoft Update Catalog.

You can also read more about Windows Updates on the following pages: