Questions about Quarantined Virus

In my security history in NIS 2010 under Quarantine, is a Heuristic virus that Norton quarantined last week when it was detected by Download Insight.

 Question 1

If ever I have to uninstall NIS 2010 an reinstall NIS 2010 do I have to worry about that quarantined file?

 

Next Questions

There are options for the quarantined file

Restore the file    ( I know I don't want to do that)

Remove the file from History  ( does this remove the file from my computer or just from history)

Submit to Symantec (why would I want to do this since Norton caught it and knows it is bad, they know already what is in the file, right?)

 

Thanks Kevin