To delete a joystick, select a joystick from the list displayed in the PPJoy applet, then click on Remove. Remove will only be enabled after you have selected a joystick from the list.
There are two options when deleting a joystick:
Remove joystick config from DirectInput should normally be ticked. If it is not ticked the rest of Windows will think the joystick is simply unplugged. It may also lead to failure when adding additional joysticks.
Remove joystick driver from the system determines whether to delete the PPJoy device driver for the specified joystick. It can safely be unchecked. PPJoy uses a pool of up to 16 device drivers for the joysticks it emulates; and can reuse the driver of a deleted joystick.
Click on OK to confirm the deletion.