Huh! After well over an hour of being on 0% it suddenly started to do things. It's now writing to the disc for the first time in ages and installing the basic (sadly) copy of 10. Even my PC is 32 bit - I recall thinking I'd only need that for my software and didn't know about the memory limitation. Still, I've got the i7 Vaio that I lugged back from Texas.
It's nearly as heavy as the PC.
