what is the folder InetSec under folder SWSetup?

have an HP laptop with Vista Home Basics and Vista SP 2

I am installing Norton Internet Security 2010. I used the add/remove function of vista to remove all Norton folders, programs, etc. I also ran the Norton Removal tool which is suppose to get rid of any left over junk (ran it several times, rebooting after each time)

after all that, I went and did a search of my using "norton"system to see if there were remaining items.

Well low and behold, there were. But all of them seemed to fall under

C:\SWSetup\Inetsec

therewere several sub folders NCO (example) and all the subfolders seemed to contain some items associated with symantec/norton. There were also other items that did not seem to have a Norton copyright



Inorder to get a clean install of Norton Internet Security 2010, can I delete these reaminaing norton items?

Can I just detele the whole folder Inetsec that falls under C:\SWSetup\ ?



Will it screw up the computer if I do?