<p>I applied to a school under one major, but now I've changed my mind. When and how would I go about changing it? Before I register for classes or when I register?</p>
<p>That happened to me, I would send out an e-mail to the registrar, or call. Depending upon the selectivity of the school your major is in, you may need to wait then apply, otherwise it shouldn’t be a big deal and I would do it before I register.</p>
<p>If you want to change it before school starts, you need to contact them as soon as possible. By registration, it will be much too late.</p>
<p>Contact the admissions department. They can help you.</p>