It includes interactive tests for the display (checking for dead pixels) and the keyboard (mapping key presses), which the BIOS cannot do.
You cannot simply “install” the UEFI diagnostic like a Windows app. Here is the proper method. hp pc hardware diagnostics uefi version 1610 bios better
: Older versions like 1.6.0.0 have been reported to cause screen freezes or boot hangs on certain models (e.g., ProBook 4540s), making the update to 1.6.1.0 or later vital for stability . Standard Tests to Perform It includes interactive tests for the display (checking