Yes Avast or Nod32, it doesn't really matter which one of the two.
Norton is an entity that should have never come to existence imo, do the malware bytes scan and if things end up not getting removed use combofix.
Another thing I would recommend uis running CCleaner to wipe clean temp files, cookis etc. in case something is hidden there
and don't walk through regedit if you don't know how it works, if you mess things up there then it is very VERY bad and annoying to fix