Manually force terminate starting service C#

Here is the step to manually stop and terminate service that starting & running in background

1. Go to Services. 
   
   
   
   
   
   
   
2. Right click on the service that we want to stop.
   
   
   
   
   
   
3. Open command prompt as Administrator. write down the command as below:
   
   sc queryex "Service name"
   
   taskkill /pid PID /f
   
   
   
   
   

Reference : How To: Manually Force a service to stop if not responding