You will then need to test each to see which one turns out to be the correct solution for your particular issue. How to fix the No Bootable Device error ...

If you see the Couldn't find a bootable operating system error on your Surface device, recover it by using the USB flash drive. More fixes here.

Three months after shipping a botched update that bricked Microsoft's entry-level tablets, the company has finally released a firmware update to fix the issue along with a detailed recovery guide.

What Does "No Boot Device Available" Mean?. If you're seeing the error "No Boot Device Available" when you start the computer, then you're having an issue with your hard drive.