License Key Not Available Wincc Logging For Runtime Advanced Work Fix -

If a license is visible but marked with a red symbol, it may be "defective." This often happens if the PC was shut down improperly (e.g., power failure) while Runtime was active.

WinCC Runtime Advanced 在启动时，会默认启动一些后台服务，包括归档服务（Archive Service）。即使项目本身没有配置归档，但某些版本的运行时，系统自身的服务可能就已经触发了对 Logging 许可证的依赖。

If you don't intend to use logging and want the error to stop, you must disable the logging services in your project: If a license is visible but marked with

Go to the menu and select "Check for Missing License Keys" .

If you are migrating a project from the older to WinCC Advanced/Professional , licensing models change. The machine is running

The machine is running. The PLC is cycling. But your production data? It’s falling into a black hole.

The background service that handles licensing may have hung or failed to start. It’s falling into a black hole

Happy engineering, and may your WinCC Runtime run error-free! 🚀

If you purchased the license but it is still sitting on a USB flash drive or your engineering PC, you must transfer it to the local PC executing the runtime.

This pop-up message commonly stems from three different technical scenarios: