The TG33MK BIOS defaults to "Legacy" boot mode. If you installed a new NVMe drive, you must enable and Secure Boot .
"You're late, boy. The building's grid is failing. But the board isn't." hp narmada tg33mk motherboard manual
Mehta coughed. "HP Narmada was named after the river because it was unpredictable. The official manual had errors. Deliberate ones. A backdoor for the lab. I encoded the corrections in a 4.7kB saga hidden in the PNP tables." The TG33MK BIOS defaults to "Legacy" boot mode