I started the AEM author instance by the start.bat ( crx-quickstart > bin > start.bat ), there the server is showing the startup complete but when i am hitting on link localhost:4502 it is showing connection refused ??
please check your error.log for the string "4502". Looks like your AEM instance is not bound to this port (for whatever reason). Can you check "http://127.0.0.1:4502/" as well (just to make sure, that your local Windows isn't broken)?