Question: I have a form wizard some input fields. On the first step of the wizard, there are 2 checkboxes which once the form has been submitted, cannot be edited. All other fields can be edited later on if the user wants to. 

How do I tell the user that the two checkboxes cannot be edited so that they do not miss out on the message? Is the following message understandable? 

[![enter image description here](https://i.stack.imgur.com/rEHjr.png)](https://i.stack.imgur.com/rEHjr.png)

Answer: 
Treat this like any other destructive/permeant act a user could take against data. Because this is an unchangeable option present a confirmation of choice. This could be a secondary check box like agreeing to terms before submitting a payment, or a popup seeking a secondary yes. Any text you put on the page no matter color will be skipped by some unless "forced" to read it.
using red text-color makes it seem like a validation error. Would go for black.
Think of displaying it in parenthesis or move it below the checkbox.