I finally took the plunge and did the upgrade. The only problem that I encountered was that my FTM 14 was not showing up on my list of installed programmes on my computer. I think this was probably because I upgraded to windows 10 after installing FTM14. It therefore took me a while to work out why the upgrade kept saying that I hadn't got FTM14 installed. I therefore had to repair it from the CD which I had, for it to show up on the list. It was plain sailing after that. No problems since.