Aktung's correct, Monderbeauty (and welcome from me too)
Believe it or not, I still haven't done anything about this. I was only thinking about it again yesterday. That suggestion of yours was interesting, only I don't know how to create a 'bootable disc/usb'... I have no recovery media of any kind, which I presume would be necessary for creating such a thing?
At long last I have some disposable income again so shall look at this once more. And thanks for your suggestion, mate