Hi Dave
What I'm concerned about is how I authenticate Windows 10 if I leave the insider program.
It say that your good as long as you stay in, but if you leave you will have to re-authenticate to stay active.
I do have a Windows 8 serial number, I'm hoping they will have a place that I can enter and authenticate it without having to reinstall Windows 8 on my computer, or that is will pick it up from my Bios.
Mike