Revert Button This button changes the dialog’s fields to the settings that were present when this dialog box was first displayed. Cancel Button Press this button to discard any changes in this dialog box. The dialog box will be closed after pressing this button. OK Button Pressing this button will confirm the settings this dialog box. The dialog is closed after pressing this button. Cancel Button This button prevents the action described by the dialog box from being executed. OK Button Pressing this button confirms the user's desire to execute the action described by the dialog box.