Cannot boot windows or enter boot manager, stuck on product information not valid screen

[charlie170]

Hello

My laptop is not booting to windows and I boot to the product information not valid - system board 00A (system board CT number) is missing. I believe this is simple enough to fix using the boot manager, however I cannot get off this screen no matter what I press, I have tried escape, all of the function keys and windows key + B + f2 and I am at a loss of how to boot from a usb so I can fix this. Can anyone help?

Thanks in advance

[stevecomputer]

What happens when you boot? Can you get into setup?

[charlie170]

I can't get to the setup or start up menu, I get a black screen for about 10 seconds when I power on and then it arrives at the product information not valid screen, even if I have pressed the function and escape key repeatedly.

[stevecomputer]

This video may help. 

https://www.youtube.com/watch?v=es_7skyo88w