How to make checkbox value non editable from inspect element

I have two checkbox's where 2 different value set to the checkbox.when a user checked the boxes value will be set. But before save it if he inspects the element and edit the value set a new value and save into database instead of default value new value save into database.How do i stop doing that to the user..any possible suggestion?

<input name="installation" value="" type="checkbox"> 

<input name="support" value="" type="checkbox">

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