Windows 10: USB COM Port Issues

On start-up, my only connected USB devices to my laptop are a mouse/keyboard and a hub. The laptop functions perfectly and Device Manager is fine. I have 2 additional USB devices that need to be connected:
A: which is a Arduino UNO and
B: which is a USB/TTL UART adapter.

When I connect A, the Device Mgr shows it as the UART device device B. When I connect B, Device Mgr shows it as USB Serial Device COM4 device A. I can't update the driver for either because Windows doesn't see the correct driver ie. if I go to the Arduino driver folder to load the proper driver, Windows will not load as it's looking for UART drivers. It's as if the 2 devices have switched identities.

Can I "delete" this devices from the registry somehow and start over? I've tried deleting the devices using Device Manager but when I re-connect them, they assume their old identities.

I'm quite stuck on how to further troubleshoot or come up with a potential fix. Any help would be appreciated!

:)

 

Issue with USB ports turning off

Hi Mattx1,

Thank you for posting your question in the Microsoft Community.

1. Does the issue occur with all the USB devices plugged in to the PC?
   
2. Does the issue occur when you plug in the USB device to any of the UISB port on the PC?
   
3. Did you make any changes to the PC prior to this issue?
   

Let us try these steps one by one to check if that makes any difference.

Step 1: Suggest you to run the Hardware and Devices Troubleshooter and check if that helps.

1. From the Settings screen, choose Update & Security.
   
2. Select Troubleshoot. Look for Hardware and Devices Troubleshooter and run it.
   
3. Follow the on-screen direction to complete the process and if required please apply the fix it.
   
4. Once it is done, please reboot the computer and check the status.
   

Step 2: Suggest you to uninstall and reinstall the USB drivers on the PC to check if that helps.

1. Press ‘Windows + R’ keys, type ‘devmgmt.msc’ in run window and press Enter.
   
2. In Device Manager, expand "Universal Serial Bus Controllers".
   
3. Right click a device under "Universal Serial Bus Controllers" and click uninstall.
   
4. Perform same step for other devices. When completed, restart the computer.
   

All USB controllers will reinstall automatically.

Article for Reference.

Automatically diagnose and fix Windows USB problems:
https://support.microsoft.com/en-us/help/17614/automatically-diagnose-and-fix-windows-usb-problems

Hope this helps.

Let us know if you got the help you needed by clicking ‘Yes’ or ‘No’.

Regards,

Srimadhwa B

Microsoft Community-Moderator

 

USB Port Oddities


Ok, let's see it with pictures step-by-step. First right-click on the USB device and select Update driver software:





Then select Browse my computer for driver software (LAST option) :





The select Let me pick from a list of device drivers on my computer (LAST option) :





Then select the standard driver from the list and click next:





Click next/OK as required to complete installation. Repeat the steps for all Intel USB devices. Finally click on each USB root device and press DEL to delete it, reply YES when asked. After deleting all USB root devices restart the computer.

I hope this is detailed enough...

 

USB Ports

Hi Homer,

We'd like to ask a few questions to help us isolate this problem.

• Have you tried connecting your device tracker to a different USB port on your computer?
• If so, was it detected?
• Did you receive any error messages?

To address this issue, we suggest that you follow the troubleshooting steps shared by Praveen Venogupal on this

link.

Let us know how it goes.

Regards.