Deleting quarantine files [NAV 2011]

I want to uninstall Norton. It's been taking too much of my computer space and a lot of other things, but I do want to delete all of the files in quarantine from my computer entirely beforehand.

 

So, I just want to make sure I'm doing it right. D:

 

You go to "quarantine", then click on the file, then "remove from history", correct?