If you need to drop a course, use the drop down menu from the Action column. Depending on the date you are dropping a course, the option for dropping will change. For example, if you are dropping your course before the withdraw deadline, it will say "Drop - Web." If you are dropping your course during the withdraw period, it will say "Dropped Course - with "W," as pictured below:
Select Submit Changes. Your Current Schedule list will be updated.