Hello everyone, I usually use the include commMg.au3 to control the Arduino through some COM port via serial, in previous versions of Windows until version 8.1 works perfectly. Recently I updated my windows to version 10 and when I use this include no longer works and the error that appears is "Port does not exist." Someone is going through a similar situation? Please can help me solve? CommMG.au3 commg.dll testeporta.au3