Unable to update virus definitions

I am a non techie eejit and haven't a clue what you are all talking about :smileyembarrassed: but I cannot update my virus definitions in spite of recently renewing my subscription and trying several times.  It says my virus definitions haven't been updated since 2005.  Am I in the right place to look for a solution; and is there any chance that a patch will become available that even a luddite like me will be able to install?  Is my system at risk in the meantime?  Any advice welcome before I lose the will to live.  Thanks x

 

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