Microsoft recently rolled out an Out-Of-Box Experience (OOBE) update for Windows 11 version 24H2 labeled as KB5048779. This update aims to enhance the initial setup experience for users. Along with this update, Microsoft introduced a Dynamic update for setup files under KB5047134. Typically, these monthly updates include various systemic improvements, but this occasion refrains from offering a standalone recovery update.
These updates fall into a category that Microsoft designates as Safe OS updates, which encompass enhancements to the Windows Recovery Environment (WinRE) and setup files. According to the release notes for KB5047134, this setup dynamic update is specifically for making improvements to the setup binaries used during feature updates for Windows 11, version 24H2, and Windows Server 2025.
Dynamic Update packages are intended to be integrated into existing Windows images before they are deployed. In a detailed post by Microsoft regarding Windows 10 Dynamic Updates, they clarified that these packages fix essential components like Setup.exe binaries and provide necessary updates for the recovery environment. The Dynamic Update process starts when a Windows feature update begins and involves downloading essential updates directly from Microsoft servers to ensure that installations are current and that language packs and features remain intact after updates.
Unlike regular updates, these Dynamic Updates are not automatically deployed via Windows Update. Instead, users must manually download them from the Windows Update Catalog.
For further technical details, you can refer to the support article here.