I am using Norton Antivirus 2006, and my subscription date expires in 86 day, will computer be protecter after

will it be possible for me to update the antivirus after the subscription date and will the computer be protected from the latest virus threats. What are the advantages and disadvantages of renewing ur subscription and not. Please I also have Symantec Antivirus Cooperation Edition 10, which needs no subscription, i guess I am right. Will it work perfectly in replace of Norton Antivirus 2006. I have used both and I am in love with Norton 2006. Please advise me because i can't pay for the Subscription fee on the Internet. Thanks....