Assign com port number windows 7

Thanks for your feedback. I have windows 7 and I need to change a com port for a device that connects to a terminal of ours.

When the device was plugged into the pc it was assigned to port3 although the program we have that allows the pc to communicate with a terminal must communicate through port1.

So my question is how do I change the usb adapter to communicate through port1 instead of port 3. All i need to do is change the com port from port3 to port1, any help is appreciated thanks. This thread is locked. You can follow the question or vote as helpful, but you cannot reply to this thread. Collectives on Stack Overflow. Learn more. How to assign a COM port number? Ask Question. Asked 10 years, 2 months ago.

Active 10 years, 2 months ago. Viewed 24k times. Improve this question. Assign it programmatically? This is the most odd test requirement I've seen in awhile It is up to the driver, not Windows.

Finding a converter with a driver that lets you do this is going to be hard shopping. The odds that your user will have one are even smaller. Add a comment. Active Oldest Votes. Improve this answer.

One board will load with improper mappings while the other is mapped sequentially when checking the Ports versus the COM port assignments in Windows. If the device is disconnected and then reconnected or drivers reinstalled the mappings can change further.

We are running dependant software through these ports that have COM port 's defined within the apps. If the box is removed the device will do one of two things, pickup the previous COM ports, but map them differently on the device or it will assigned higher COM ports as if the other device is still present, again with mappings potentially being off.

Is there a way to ensure mappings are loaded correctly from the get go so port 's and COM port 's coincide without having to re-assign them manually in Device Manager?

Occasionally the device is installed correctly the first time around. Any help is appreciated as this seems to be abug in perhaps plug and play with port assignments. Open Device Manager. Then expand the entries of the ports. Right-click on the port you want to change and choose Properties. On the Port Settings tab choose Advanced.