My Norton AntiVirus only reported one infection after a deep Scan. As my computer is behaving very badly I suspect major infection, especially spyware / adware / hijackers, so I downloaded several free trial anti-virus programs that carry out a Scan (but usually do not carry out a fix until you have paid for them). The results ranged from a handful of infections, to 60 to 100 or so, but one major anti-virus program listed around 2000 infections (with interesting details on each).
Now, do I pay for the one with 2000 results, use free programs which detect (much) less, do I continue with Norton (which I am attached too, having used it for years), do I use two or more programs, or just one? I have seen conflicting advice on this last point, some of it highlighting the probability of conflict, some of it claiming two or more programs are better.
By the way, I have come back to this Forum after several years of absence from my computer / internet due to serious illness (now slightly better) so I apologise if I have forgotten the rules / etiquet, etc. It was nice to find my old login details still work, unlike another Forum where I have been going round in circles for two weeks trying to get my login activated / accepted.