Hmm thanks for that.
I seem no longer to have any AV alerts.
But a number of odd things are now happening (not suggesting they are related).
Such as I seem to have lost all file associations. So when I select an http link it asks me how to open it, and other files.
I also have a background process which used to ask once for permision to run and now it keeps on asking.
I have tried to download 'Microsoft Safety Scanner which involves Java, but I can’t download that either!

I have had other problems before this and since upgarding to Win10
I wish there was a ‘system scan’ which might check/fix problems (apart from AV, Spyware etc)
Nigel