When working with WMI (Windows Management Instrumentation) and experiencing problems with the error code "80041010" and the message "Invalid Class", usually the problem is caused by some required WMI classes that are not properly registered in the Windows system. The solution is to (re-)register all the WMI classes. Read our latest knowledgebase article What to do when getting the 'Code Error 80041010 - Invalid Class' error while creating or using WMI sensors for more details.