HP envy palmcheck/touchcheck won't disable?

My girlfriend has a HP envy laptop that she just got yesterday. She finished updating everything but she would like to play minecraft and the Palmcheck/Touchcheck option that disables her from typing and using the keyboard at the same time can't be disabled? I've read a few solutions, most involve going into the settings and just disabling the function, but the option doesn't even appear for her.

How can we disable her palmcheck/touchcheck to be able to use the touchpad and keyboard at the same time?

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