Hi Roland,
It could be any of the application that is getting loaded during the windows startup.
Use the MSCONFIG Startup Utility by following the below Screen Shot & updated us on the applications listing under the startup tab to identifying that particular application.
(MSCONFIG Startup Utility it allows you to quickly disable and prevent an application from starting when Windows starts. This is the tab that you use to isolate potentially problematic startup programs, or to quickly streamline a system by removing unneeded applications from running.)