Windows insider build ran into a problem

[Harsha9128]

It's showing my windows insider preview build has ran into a problem.

I am on latest canary build. It's a green screen and the stop code is Unmountable boot volume.

I tried to flash using bootable usb but no drives was shown to install please help

[#2]

When you see this error?
Is it when you boot your Windows?
Are you able to boot your Windows?
Did you install any program before this problem started?