Nortons has detected a trojan horse trying to attack computer, what should i do?

You wouldn't by any chance have Windows Defender on the computer would you ?......that's the culprit if you do...I had the same darn thing happen to me...your Norton is thinking that it's under attack because one of your other programs is scanning it...and Norton does not like that at all.....the dead give away is this >>> Tidserv Activity