I can't undervolt my i5-11400H CPU

[IbraheemAjaj]

I'm using Intel XTU to undervolt my CPU voltage but I got an important notification will be attached as an image.
what is the solution ? It's very important for me 

[AlHill]

First, only X and K processors are supported by XTU.

Second, update your bios and check if your motherboard has undervolt disabled.

Doc (not an Intel employee or contractor)
[Maybe Windows 12 will be better]

[Marcoslasaye]

and if its disabled, then what to do