Upgrading iPXE booting Windows 7 to Windows 10

[-bat.]

Just to follow this up, I ended up trying to attach the iscsi disc manually during the upgrade process as described here:

http://baitisj.blogspot.co.uk/2015/08/fo...iscsi.html

But this also does not work - the drive attaches, but the files necessary for the upgrade have not been installed. I am going to try and upgrade from the DVD, after what people have said here about it not working as a fresh install, as that might work (though would then require manual activation I suspect).

If not then tis going to have to be the 'physical drive first' approach, which is unfortunate, and somewhat difficult given the location of the hardware in my case!

Thanks for all the help on this ....