Help to change Hp default name

Hello everybody,
I don’t know if this post in the right place.
If not, could some admin move it?

I bought two used Hp elitedesk mini to play with kubernetes, but despite I already changed the hostname in debian, unifi continues to detect both as “DESKTOP-FMK7NIE”

I know, I can easily override their name on the unifi console but I would like to change the it directly on the source, maybe there is something on bios to do that…

Could you help me?