What Does System Refresh Do To Norton?

I have an Acer with Windows 8.1.  This morning the computer did updates when I was turning it on.  This happened twice consecutively, which was a bit odd.  However, I wouldn't have thought too much of it.  Then, I got frustrated and shut it off in the middle of the updates.  The computer was not turning on for a while, just the start up spinning wheel.  Needless to say, I got very frustrated as I was in the middle of a work assignment.  Then, I opted to do system refresh to restore it, albiet somewhat impulsively as I was rather frustrated with the fact that it wasn't even turning on.  I wasn't sure what system refresh was, but it said it was an option for a computer that is "not running right" in other words.  Now that I did that, the computer came on and appears to be working fine.  However, it shows the McAfee that the computer came with.  The Norton files are there, but it isn't installed.  Needless to say, it was quite annoying, and I wonder what this means most likely?