Boot Device Not Found with a broken screen

[alyryan247]

Hello, when I boot my laptop I get an error saying Boot Device Not Found. Most solutions I see online have to do with the BIOS or UEFI, but I cannot access the UEFI, and my screen is also broken which means I can only see roughly half of it

. I've tried resetting the BIOS, re-inserting and replacing the hard drive (I put the old one back in after it didn't work), connecting to a monitor in general, and also re-installing windows using a usb flash drive. None of these worked. I can't install windows because there's no drive options to install to, and it won't let me continue setup.

Concerning the broken screen, I've tried connecting to a monitor using both VGA and an HDMI cable connected to a DVI adapter. I assume that there's no DVI signal due to the use of an HDMI cable between the connections, but when I attempt to use VGA there's also no signal. It's not the cable or monitor, as the monitor would say "Check Video Cable" if it wasn't reading the laptop at all. Instead, it says "No Video Signal". 

[WAWood]

Please don't combine very different issues into the same post -- as folks here tend to specialize in their interests.

In terms of the boot device, what you read online is incorrect, as this is nearly always the result of a failing drive and s nothing whatsoever to do with BIOS or UEFI settings.

See the following HP Guide for more information:

https://support.hp.com/au-en/document/ish_3053911-2842957-16