boot device not found

[Virgieaw]

when I tried to update my computer it kept shutting down and then undoing the changes when I would turn it back on  so I tried to do a system recovery from a USB drive made from the windows media but that didn't work so i bought a recovery disk.  it started and then I wanted to do a custom install I followed steps i saw on line and now it just goes to black screen saying boot device not found how can I fix this?

[Lil_Boy_Blue]

Hi
First:- Turn off the computer, press and hold the PWR button for 4 seconds.

Then - Leave only keyboard and mouse connected, disconnect all externally connected
devices such as Docking Station, USB storage devices, displays, and printers.
Unplug the AC adapter from the computer.

Next - Press and Hold the Power button for 15 seconds to Hard Reset.
Rinse and Repeat; Re-Connect the AC adapter.

NOW begin checking/testing/proving the Hardware is fit for purpose.
Power on your PC, press ESC (repeatedly), then F2 at the prompt.
Choose System Tests (Fast Test does a 4 minute hardware check).

Next would be checking the BIOS boot screen options, and I would expect SECURE boot to be selected.

Then I would, if I could, try and make a W10 USB...

https://www.microsoft.com/en-us/software-download/windows10

During the install I would look for screens similar to these...

 

and attempt a repair.

From 2016 onwards there is a possible recovery option via the cloud...
HP Consumer PCs - Using the HP Cloud Recovery Tool (Windows 7 & 10)
https://support.hp.com/us-en/document/c06162205

http://www.thewindowsclub.com/install-windows-10-from-usb

If in doubt please ask.