Set or change the COM numbers


step1 "enter device manager "



step2 select "Decision PCCOM PCI 4 PORT"



step3 select "Port Configurarion"



step4 select the COM port which you want to start from "starting COM".



step5 Reset the compter first.
Please note: do not execute "computer hardware scan" before reset the computer.
After the computer is reseted, the computer will auto select the COM port that you choose in before.