Resolution: We have started to gradually remove this safeguard hold. If you try to install version 24H2 using Windows Update under Settings, Windows 11 Installation Assistant, or Media Creation Tool, you might receive a message requesting you to uninstall your wallpaper app. We also recommend updating the app, since a newer version might be compatible. Or you may uninstall, instead. After you complete this action, you will be able to finish installing version 24H2.

Note that several wallpaper applications are currently included in this compatibility hold. For this reason, the specific timing of the resolution of this issue on a given device may depend on the application being used and the timing of that application's update. As new versions and updates are released for these applications by their respective developers, it's expected that these issues will be resolved.