from HP you neter the bios this way (they call it computer setup)
Starting Computer Setup
NOTE: An external keyboard or mouse connected to a USB port can be used with Computer Setup
only if USB legacy support is enabled.
To start Computer Setup, follow these steps:
1. Turn on or restart the computer, and then press esc while the “Press the ESC key for Startup
Menu” message is displayed at the bottom of the screen.
2. Press f10 to enter Computer Setup.