How to install window service

A window service need to be installed at first. Under Windows 10, click on window button, type dev inside the search input, and choose Developer Command Prompt for VS2012, which is the service installer named installutil.exe.

Note, when you applying installutil to install window service, you need to run it with Administrator privilege.

Then go to the directory of compiled service, usually it's inside directory of bin/debug, and type
installutil yourservice.exe.

Your service will be installed successfully.

Reference:
http://www.c-sharpcorner.com/uploadfile/naresh.avari/develop-and-install-a-windows-service-in-c-sharp/