Windows $10$: Access Settings $>$ Update and Security $>$ Recovery $>$ Restart

Now button $>$ Troubleshoot $>$ Advanced Options $>$ UEFI Firmware

Settings or Startup Settings $>$ Restart button

Describe a situation where you think a technician would use this technique?

What BIOS$/$UEFI options are available on the main screen?

What option or keystroke$($s$)$ allow$($s$)$ you to exit BIOS$/$UEFI$?$