Hi SRS, I am at this moment sitting beside the infected machine with my laptop from which I just downloaded Malwarebytes onto a stick and have managed to load it onto the infected machine and now waiting while it does a full scan.

I am still getting continual messages popping up trying to frighten me telling me how bad things are but if I click to download this "Internet Security 2010" it will solve all my problems, and as fast as I delete them they keep coming back.........meanwhile the scan is still going, I've got plenty of patience.

I'm not too computer literate so I really don't understand the "CD drive as a boot disk" bit, but anywqay I will soldier on.