How to identify Com Ports in Windows10

The new device manager in windows 10 is not showing the "com port" numbers.  Such as COM1 COM2 and so on.  If I open the serial bus controller line in device manager it does not provide the port information.

What I am trying do is connect to my network switch with a terminal emulation program via an Ethernet cable out of the back of the switch.  I know it works since I used it on an old win7 computer. But that computer is long gone.    9600, 8, none, 1.  COM1, COM2, or whichever port I happened to be plugged into.  But I can't verify what COM PORT I am using.   

If someone can point me in a direction, it would be a big help.  I have done all the net searches I can think of.

Thanks in advance.

***Modified Title from: Identify Com Ports in windows10***

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Hi Thomas,

 

Thank you for writing to Microsoft Community Forums.

 

We understand your concern. However, serial bus controller in Device Manager contains USB devices and USB port numbers and it seems COM Ports devices might be hidden, so please follow the steps mentioned below and check if you can see the Com Ports.

 

  1. Open Device Manager.

  2. Click on View in the menu bar and select Show hidden devices.

  3. Locate Ports (COM & LPT) in the list.

  4. Check for the com ports by expanding the same.

Hope it helps.

Manjunath H
Microsoft Community – Moderator

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below is version number of the device manager I have on my machine.

Version: 10.0.17134

There is no com or lpt port line on this version.  It did show as described on my win7 machine but not on this version of device manager.  I had "shown hidden devices" before, but to no avail, and I just double checked it again after reading your response.  And thank you for the response.  But so far I can still find nothing that associates usb devices to com ports on this machine.  I had expanded the serial bus controller tree and checked properties of the three usb devices (generic usb hub, usb host controller and usb root hub) connected   Still no com port information.  

If you can give me another idea it will be a big help.  After a couple of days of chasing information down on the net, and so far with no luck, it has been frustrating.  You wouldn't think Microsoft would make information that is needed so often so hard to dig out.  BTW I also went thru properties on all the items under HID as well.  Still nothing that showed com ports.

Thanks again.  Have a great day.

Thomas 

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Hi Thomas,

 

Thank you for your response.

 

We apologize for the delayed response. In this case, please refer to How to include a screenshot in your post and provide us screen shot of Device Manager Window after enabling Show hidden devices, so that we can assist you further.   

 

 

Regards.

Manjunath H
Microsoft Community – Moderator

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Thanks for the reply.  Device manager screenshot is attached.  Have tried all suggestion and so far no luck.  The below was copied just after "show hidden devices".  Still no "COM and LPT PORTS"

Thanks all.

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Hi Thomas,

 

Thank you for your response.

 

We truly apologize for the delayed response. In this case, please let us know the make and model of the computer, so that we can guide you further.

 

 Also, kindly follow the steps mentioned below and check.

 

  1. Open Device Manager.

  2. Click on Action in the menu bar and select Add legacy hardware > Next.

  3. Select Install the hardware that I manually select from a list (Advanced) and click Next.

  4. Scroll down, then select Ports (COM & LPT) and click Next.

  5. Select the Manufacturer accordingly and click Finish.

 

 

Regards.

Manjunath H
Microsoft Community – Moderator

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Last updated May 14, 2021 Views 105,177 Applies to: