How do I allow Norton Internet Security acces to my C drive?

I recently installed Norton Internet Security a couple months ago. Now, whenever I start up my computer, I receive an error message stating that access to my C drive is denied for Norton Internet Security. What can I do to allow access to my C drive and protect what’s on there from worms, viruses, trojan horses, etc?

I have a choice on whether to buy Norton Internet Security, or Norton Antivirus, which should I pick?

My father is going to take me to get a new antivirus tomorrow, and I want to know whether to buy Norton Internet Security, or Norton Antivirus (both are 2010.) Don’t judge on the cost, because we don’t really care about the cost, all I want to know is which to buy. And give me your opinions, and if you have other suggestions other than Norton, tell me about it, with your suggestion on Norton. Thanks!

How to find my Norton Internet Security 2010 product key?

I bought Norton Internet Security 2010 and installed it via the disk, but I don’t have the box it came in anymore. It is already installed on my computer, but I am going to have to reinstall it and I need the product key. How do I find it?
I didn’t make a Norton Account online.

How to update kaspersky internet security 2009 without internet conection ? Plz giv complete procedure?

I have no internet connection in my pc to update my kaspersky internet security 2009 , is there any way to update it ? Plz help