If you have a service that is not responding or you are unable to stop the service, Use the following steps to force stop a service.

• Click the Start menu
• Click Run or in the search bar type services.msc , press Enter
• Look for the service, right click and select properties and identify service name

• Open a command prompt and run as administrator
• Type sc queryex servicename and press Enter 
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• Identify the PID
• Command prompt, Type taskkill /pid [pid number] /f and press Enter