|
Power off, hold Windows+B, power on and keep holding for 20+ seconds.
Power off, hold Windows+V, power on and keep holding for 20+ seconds. Power off, hold all 4 arrow keys, power on and keep holding for 20+ seconds. https://support.hp.com/us-en/document/c02693833 Unplug power and battery, disassemble and reset CMOS https://h30434.www3.hp.com/t5/Notebook-Boot-and-Lockup/Laptop-Will-Not-Boot-After-BIOS-Update/td-p/6716008 |