It sounds like you are running Norton Anti-Virus. Could be that there was a virus scan in progress.
symproxsvc = Symantec proxy service
nmain = Norton main
Yes you can disable Norton anti-virus and not have to worry about your hard drive exploding, as long as you have taken other precautions. Rather than repeat the contents of many previous posts - <A HREF="http/forumz.tomshardware.com/hardware/modules.php?name=Forums&file=viewtopic&p=395280#395280" target="_new">here</A>.
He that but looketh on a plate of ham and eggs to lust after it, hath already committed breakfast with it in his heart. -C.S. Lewis