When i log in it comes up failed to locate component, reinstall application avkernel.d11 how do i find out what this is and how to reinstall it.Everything was alright until i downloaded my new norton anti virus.
It means your Norton Anti virus didn't install properly. You need to re-install it - or better still (as Norton AV is a synonym for dog poo) uninstall it and install something decent and free, like AVG or Avast.