I installed Norton Anti-virus 2005, which was free with google pack,should i remove it & install

becoz updates expired long ago

I installed Norton Anti-virus 2005, which was free with google pack,should i remove it %26 install AVG-antiviruslive update

remove it anyway as norton is one of the worst programs out the... i would recommend 2 antivirus programmes which was named top 2 last year.

Nod and kaspersky

You can find nod at http://www.eset.com/

You can find Kaspersky at http://www.kaspersky.uk.com/

Hope this helps

I installed Norton Anti-virus 2005, which was free with google pack,should i remove it %26 install AVG-antivirusnorten

If the updates expired ie finished then it is as good as useless because there are lots of new viruses put out on the internet every day and the anti virus data base needs to be updated to keep up with them.

Norton is bloatware it uses up too much from the PC's resources (cpu and memory) you are better off with avg or avast both of which are free. Kaspersky and NOD32 are very good but not free.
no, norton anti-virus 2005 from google pack is only a "manually scan" software, it does not have auto-protect.
Okay, I'll put it to you this way: A number of my computer friends have been having AVG Free Edition for many years now and they say that AVI can and will find the stuff that Norton has left behind. Me, I've never used Norton, only Kapersky and AVG (not at the same time together). I prefer AVG because not only is it free, but it also has for free an anti-spyware program. My suggestion is for you, my friend, is to search Google for: "AVG Free Edition" and download it as soon as possible. Caution: you have to type in all three words: "AVG Free Edition" to get it. If you just type in AVG and nothing else, AVG will try their best to sell you their programs and all the other accesseries. I don't think you want that. Okay, I've decided to help you further. Here is the URL for the version that you wan: http://free.grisoft.com/
yes you should do it or otherwise downloat another free trail of NAV
It is good practice to keep a single good antivirus or antispyware, so the system works with good performance.