I agree 100% with everything microMerlin said. But I will add my 2 cents…
When using the Arduino IDE on WinXP and Win10 machines, I usually have 2 ports listed, (COM1 & COM3 on Win10). When I plug a board in, a third port is added in that menu option of the IDE. Additionally, when I plug a board in, the computer will emit a short sound to indicate a new USB device has been plugged in. In fact, every board I’ve ever used, once plugged into the computer, causes the computer to make the ‘new USB device’ sound.
But yeah, the arduino forum is where you should be posting this…
Randy