Yes I will…
I did as above and got a response y/n and chose y… and something happened
I won’t know if it worked until I do another scan with Avasti - but thanks in advance 
Yes I do realise it’s a Norton caused problem. I asked here because being a major competitor I hoped many people here would have migrated from Norton and therefore would have had a similar problem…
Had I known Norton was so difficult to remove before I did so I would of course have flushed and everything first… sorry about that… I guess we never usually know in advance…
Thanks for all the help…!