From Norton's Community Forums here;
It seems to be exactly the same question you have asked. See if there is any definitive advice there, but be sure to read the whole thread, (2 pages), before proceeding as some of the advice may just be 'user's opinions'.
Good luck, and I hope that helps.
I bought my computer a year ago with Norton IE 2010 installed. Now I have bought the 2011 version but I am not sure how to install it from disc. Are there steps to take prior to installation other than simply uninstalling 2010 from my control panel?
I'm running Windows 7.