Thanks to the advice I got some results and was (temporarily) most pleased. However, I am back to square one after doing a system restore going back 4 weeks. Things again improved but went downhill from there.
I tried Google again and again but the number of complaints about links not opening in Google is amazing. Not only Google but Firefox and Opera and also Mozilla with a great big anti Chrome. What is going on?
If anything the problem is worse now than it was. I took up an offer to check out my DNS addresses but that didn't work either.
It was only two weeks ago that I could open any link in Google.
????? Please.