In the early hours of this morning, the big Lenovo set about upgrading itself to Windows 10. By 07:00hrs it was all over and the laptop is running well, no obvious issues as yet. I will take a look at it when it is freed up by the owner.
So, all of the computers here upgraded without any major issues, and even though I have said it before, I will say it again.
Major changes complete way better on a system that has not been subjected to dubious tweaks and paranoia about what Windows maybe be doing when you are not looking.. 🙂