‘Boot Device Missing or Boot Failed’

This post is intended only for people like me who have never been tech employees.

You might get the error message
‘Default Boot Device Missing or Boot Failed. Insert Recovery Media and Hit any key Then Select ‘Boot Manager’ to choose a new Boot Device or to Boot Recovery Media Ok?’

That message led to problems, because, even in direct communication with the company, the tech employees disturbingly didn’t perceive that they and the website simply need to disclose that such error message is trying to say:
‘Windows or other operating system is yet to be installed.’

I had thought the message means:
there is a problem or lack regarding some basic software that is more fundamental than an operating system, such as Bios or other firmware.

And i had already searched the Framework website using
and had found nothing to clarify.

So i hope this posting fixes that lack.

‘keyboard not found, hit F1 to continue’ A classic since the 1990s and possibly even earlier

You could have asked the question here?