How to remove old version of norton?

I have oldest version norton. help me to update it or remove it from my desktop.

Do you want to update or do you want to remove? 

To remove, download and run the Norton Removal Tool.    www.norton.com/nrt

To update, purchase and download the latest product you want to install. Then run the Norton removal tool as above, then restart your computer. Then start the installation for the new product. Be sure you run LiveUpdate manually a few times, restarting as necessary, until no updates are available.