One of our pcs (out of 3) will not update Onecare virus data and I have now tried to reinstall which also fails - 'problem with connection to service' error. Windows Defender is installed but set to 'off'. The other 2 pcs including the 'hub' all work fine. I have seen a similar user problem on another forum but no answer provided. Tried some of the 'support' suggestons but no use. Anyone help?