Hi Juliet,I've done that BFEreg thing you asked in your last post,although I've no idea what the purpose was! generally I stay away from the registry,as it's so easy do something dumb and end up with a PC which refuses to work.
I'm pleased to say that the bootup time is a lot quicker,and the PC is much less sluggish and is approaching the kind of response I enjoyed previously,So much kudos to you, and many thanks for leading a paranoid senior threw the various stages of repair.
I assume i need to do some deleting of the many programs we've used.
Kindest Regards,Laudorum