Generally the "media keys" function of the function keys must be turned off in UEFI/BIOS. But, there are brands like Lenovo that have a utility where it can be done under Windows.
The make and model of the machine in question is necessary to give a definitive answer. And it's likely to be a UEFI/BIOS tweak, which will require sighted help.
Brian - Windows 10, 64-Bit, Version 21H1, Build 19043
The ignorance of one voter in a democracy impairs the security of all.
~ John F. Kennedy