Getting the next build on a vhdx

[ojo otter]

Basically, I downloaded Windows 10 by creating a vhd, and then mounting the ISO onto it, so I could dual boot Windows 10 with Windows 8.
When I got it, the website I was taking instructions from said that I couldn't get future builds without starting again...But I there a way to bypass this?
Could I go onto Windows insider, and click install OS and go through it normally/officially, and get future builds, as well as keeping I dual booted (meaning it stays on that vhd). I mainly use Windows 10, but I have certain programmes/files that I don't want to risk losing (or rendering unusable) when I install it normally.
Thanks for the help!

 

[David Feifer]

The problem is that the boot loader of windows is what is interpreting and driving the virtual drive as a physical. During a build update there is a very good chance these files can be replaced which then has a good chance of breaking the virtual machine. so, currently as far as i know, Microsoft has it coded to not be able to build patch.