Can I stall BOTH Norton Internet Security & Kaspersky Anti-Virus?

If you are going to download one, All you need is Kaspersky. Kaspersky will run circles around Norton. Norton will miss things that Kaspersky will not. Kaspersky has the best built-in anti spy on the market. Also the best Anti Mal ware, Firewall to and a whole lot more. It will not slow your machine down like Norton will either. Downloading both of them is stupid. One will detect the other as a Virus. If you want the best quality AV, Go with Kaspersky. I have been using it for three years and have not been infected in that three years. I know another that has used it going on nine years, He download all the time. Never gets infected. 9 years, 100% protection. 100% protection for me for 3 years. You can't beat it. Kaspersky Internet Security or Kaspersky Pure. You can't beat it.