Fix now

Hi

Every time I turn on my iMac Norton Fix now pops up and I have to press security. All it seems to do is load the latest update.

A couple off weeks ago I contacted Norton chat and a lovely lady Brina Jessabel Marie logged on to my iMac and removed and re-installed Norton. This seemed to fix the problem but a couple of days later Fix now pops up every time. 

Any solutions please?

Billy