Ran a test on computer but still a blank screen when I power it on

[Zay23]

I ran a test on the computer and everything came back as PASSED.  The computer still has a blank screen when I power it on. 

[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

AND/OR - Power on your PC, press Esc (repeatedly), then F2 at the prompt.
Choose System Tests (Fast Test does a 4 minute hardware check).

AND/OR - Windows Logo key + Ctrl + Shift + B
(This key sequence actually restarts you graphics driver (W10 only).)


Next would be to consider an F11 recovery option or booting from a USB.

https://support.hp.com/us-en/document/c02693833

If in doubt please ask.