Unlike dropping one or two courses, a cancellation/withdrawal from the University means that a student chooses to drop all courses for a given semester.
A cancellation is processed PRIOR to the start date of a regular term.
A widthdrawal is processed AFTER a regular term begins.
Both processes can be completed on-line.
Learn more: Click this link to read the procedures for cancelling enrollment/withdrawing from the University; you may wish to print the document.