The "WMI repair" consists of re-enabling the WMI service that poorly informed IT administrators and/or "optimization programs" might have disabled. The WMI service is re-enabled and set to start automatically when the system boots. TurboActivate does this with every function that uses WMI -- and it only does it if the process calling the API has admin privileges.
Also, it's only on Windows that it does this.
You don't need to do anything special.