a good place to start would be Norton website.
found this http://www.symantec.com/connect/forums/how-remove-symantec-endpoint-protection-ver-110420275
or google it https://www.google.no/search?q=how+to+remove+norton+endpoint+protection&ie=UTF-8&oe=UTF-8&hl=nb&client=safari
and video here http://m.youtube.com/#/watch?v=rbga1t6xmGk&desktop_uri=%2Fwatch%3Fv%3Drbga1t6xmGk