Thanks everyone for advice given. I have decided that as I will be the wrong side of my seventies by the time extended support ends in four years, I will be better ticking over with Windows 7 as I am...

Oh dear - even more nervous! I have never made a disk image but sounds like it could be useful to do anyway even if I don't upgrade. I don't want to have to start from scratch again, I had a problem...

I have been nervous about installing Windows 10 on my desktop computer but feel it would probably be better to take the plunge before July. At the moment I use Internet Explorer for an email address...