Thanks for the replies.
I did try all of the repair options I could see but nothing worked so I ended up rebuilding my software platform from the provided USB recovery key.
Interesting about the reseating issue, I had done all of the work before I saw that so will try it if I run into trouble...
Doh! I just looked at the most recent screen shots and I see that the USB drive did actually show up on the list when I went into the sub menu that time. It wasn't showing up before even though it had been connected.
Going to try and get the system back up now.
I will be back if I hit any problem.
So I was having trouble with a system build (software) and I set off a Macrium Reflect system image restore. When I came back to the laptop it was stuck in a permanent loop were it says Restarting on the windows light blue screen, then the screen goes blank for a couple of minutes and back to...
