I've installed Butel Scanning Software on a new HP computer that has Windows 10 Version 1709. When I plug in the USB1 I get an error message that says, "Serial port is not available or used by other software." What is the solution for this? I'm unable to even find the device manager so that I can change serial ports not that I'm even capable of doing so without help. I have installed the FTDI driver software recommended to me already. Can anyone help me through this? To be honest I'm way out of my league here!