<p>Or can you go back and change your classes anytime?</p>
<p>You’ll have to wait for the Add/Drop period now. I think the enrollment window only lasts a day or 2 past orientation.</p>
<p>When is the Add/Drop period?</p>
<p>You should be able to make changes. See the following.</p>
<p>[UCI</a> University Registrar - Enrollment Windows](<a href=“http://www.reg.uci.edu/enrollment/windows.html]UCI”>UCI University Registrar - Enrollment Windows)</p>