Kirk
Thank you for your reply.
Your BIOS is already up to date and does not need to be updated.
These are the steps to enable Secure boot:
① Please repeatedly press delete key as soon as you turn on the PC, go to BIOS.
②Navigate to Security page. Click secure boot and choose enable , change the secure boot mode to custom, press F4 to save.
③ When the PC restarts, press delete key to go to BIOS again. change the secure boot mode to standard and press F4 to save. The status will become active.