Well, I fired up the Win10 machine and loaded Fusion to it. Sod it - it works OK ! I was looking for an excuse to go to Linux on that machine dammit dammit dammit !!!!!
I suppose I will just have to bite the bullet and not let my seething loathing of Microshaft control practicality.

Graeme, looking at the system on the win7 machine, it looks as though the onboard Intel HD graphics were using 250MB of RAM.

So it looks as though I am set up to learn Fusion now.

Cheers,

Rob