Windows 11 21H2 – 22H2: Dynamic Updates KB5027317 and KB5027318 (June 2023)

Windows[German]Another addendum from last week – Microsoft has released two dynamic updates KB5027318 for Windows 11 21H2 and KB5027318 for Windows 22H2. These updates allow corrections to be made to the setup during a Windows installation. Among other things, corrections can be made to WinRE.


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Dynamic updates KB5027317 and KB5027318

On June 28, 2023, Microsoft released two dynamic updates KB5027317 for Windows 11 21H2 and KB5027318 for Windows 22H2. The description of the updates is quite brief. Each update contains enhancements to Setup binaries or files that Setup uses for feature updates in Windows 11, version 22H2. Dynamic updates are optionally loaded during the installation of Windows to make new drivers, improvements to the operating system or WinRE, etc. during the process. According to Microsoft support articles, the updates can also be downloaded from the Microsoft Update Catalog.

Background dynamic updates

Dynamic updates were introduced by Microsoft with Windows 10 to be able to integrate them dynamically when upgrading (feature update) from one operating system version to a higher version. For example, if you call the Media Creation Tool to create an installation disk, you will be asked whether you want to download and integrate updates. Also, when upgrading (feature update) to a new Windows build, the setup will ask if you want to download updates.

This Technet post provides some information about 'Dynamic Updates' for Windows 10. Dynamic Updates can include the following:

  • Setup Updates: Fixes to Setup binaries or any files that Setup uses for feature updates.
  • Safe OS Updates: Fixes for the "safe OS" that are used to update Windows recovery environment (WinRE).
  • Servicing Stack Updates: Fixes that are necessary to address the Windows 10 servicing stack issue and thus required to complete the feature update.
  • Latest Cumulative Update: Installs the latest cumulative quality update.
  • Driver Updates: Latest version of applicable drivers that have already been published by manufacturers into Windows Update and specifically targeted for Dynamic Update.

In addition to these updates, Dynamic Update retains the content of Language Packs (LP) and Features on Demand (FODs) during the upgrade process. These are not updates to LPs and FODs, but are a new purchase to ensure that the user has these items available when the update is completed.


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