It is recommended that you remove the external devices and the third-party hardware devices added later, and click F 10 continuously when starting. If you can't access the bios, it may be related to the machine hardware. You can consider contacting your local HP maintenance center to repair the hardware on site.

Tips: It is recommended to call HP service center to repair the machine from Monday to Friday. If maintenance is needed on weekends or holidays, it is recommended that you call the local maintenance center for consultation and confirmation in advance to avoid unnecessary running around.

F2bios basic information, F9 machine startup option selection, F 10 enters bios, F 1 1 enters HP's own recovery system tool, and the USB port checks the external keyboard.