I have solved the problem. I updated the Bios with an app from Samsung and all appears good now. The system now recognises my external boot devices and can boot from Them. My 64 Gb USB drive is...

Thanks for your reply.
I have done the creation many times following the procedures on this forum and microsoft page.
It did work once when I created it without ticking the system file box. only...

I have just installed the free windows 10 upgrade from Windows 7 home premium. I have used the file history program to create a USB and a DVD recovery disk prior to creating a system image ( not...