Free acer technical support

HI
I AM USING ACER ASPIRE 9300 5349 HAVING S. NO.71901112320 PURCHASED IN 2007. THE LAP IS NOT USED FOR A LONG TIME. I HAVE CLEANED AND STARTED USING IT NOW. IN THE PROCESS OF CLEANING BY MISTKE NORTON ANTI VIRUS PROGRAMME (WHICH WAS ACTIVE FOR 200 DAYS FROM NOW) WAS DELETED/UNINSTALLED. I DONT HAVE ANY BACK UP DISC; ACCCESS CODE - ACTIVATION CODE TO ACTIVATE IT AGAIN ON LINE. I HAVE RESTORED THIS PROGRAMME FOM BACK UP FILES. I AM UNABLE TO ACTIVATE ANTI VIUS POGRAMME NOW .

CAN U PL HELP ME DEAR