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If you want to change the port settings, please follow the steps mentioned below: . Open Device manager (right click on start button and then on Device manager).
For most devices, the Ports device setup class and the Serial function driver provide the functionality required to operate serial ports and COM ports. To install serial ports and COM ports using these system-supplied components, do the following:
Then expand port (COMS & LPT). Then right click on Prolific USB-to Serial Comm Port and then on properties.
Go to port settings and click on Advanced. You will be able to make the changes on this screen.
For more information about installing serial ports and COM ports using the Ports device setup class and the Serial function driver, see the following topics:
If you do a custom installation of a COM port, you must comply with the COM port requirements that are defined in Configuration of COM Ports.