Click "System Recover" under the left section, labeled "I Need Help Immediately." Follow the on-screen instructions to boot off the recovery partition and restore your HP computer to working order.

HP PC Hardware Diagnostics UEFI helps you diagnose and fix PC memory, disk, etc, problems on Startup. Learn how to use it, install it or disable it.

Instead, turn on the laptop without any extra pieces attached. Your computer may start up normally, or it might give you a startup menu and ask if you want to boot in Safe Mode.