Well, if it helps any, my computer starts up in 45 seconds. I think it is pretty well tuned, in terms of not having programs start that don't need to. I am also using AVG anti virus and not Norton.
I think you are correct that Norton takes a long time to start. It will definetly slow down the process. If I am not mistaken, the version you have actually does a scan when started and this takes time.
Another reason why computers can take a while to start is extra programs starting that don't need to. There are even little parts of programs that can be running that you might not be aware of, these are often used to 'call home' to their creators and look for product updates. For instance, HP software does this, Kodak does, Adobe does, etc. You can disable these little programs and perhaps pick up a couple of seconds of start up time by going to msconfig
as per D-Trojanator's post.
EDIT: And my laptop takes 40 seconds, but has no antivirus on it.
Edited by Albert Frankenstein, 06 July 2006 - 09:21 AM.