Windows 10: COM ports do not appear on Windows 10 Pro computer, even when showing hidden devices.

I have an 8 port USB to RS232 Serial hub and I am remapping the automatically allocated COM ports to match the port numbers on the hub...


I have successfully remapped COM 1 - 4 but on trying to allocate COM 5 I see that it says "in use" COM 6 is the same


I have set the environment variable to devmgr_show_nonpresent_devices 1 as suggested in this thread:


https://theitbros.com/how-to-delete-com-ports-in-use/

... and I have changed the view to show hidden devices, but I can not identify what is using those ports.







I'm at a loss, can anyone offer any suggestions?

:)

 

port COM and LPT in the Devices Manager are not appearing

Hi Luis,


I suggest you follow the steps to check for hidden devices, and check if it helps.

1.Press Windows + X and click on Device Manager.

2.Click on View menu and select Show hidden devices. See if this helps in getting the ports to list.

3. Expand the Ports under device manager. Uninstall any entries which appear grayed out, then restart.

4. Right-click your computer name in Device Manager and click Scan for hardware changes. Device manager scans your system and automatically reinstalls your device.

If the issue persists, then I recommend you to install the latest drivers for your motherboard.

Do let us know the result.

Thank you.

 

USB Webcam showing as Hidden in Device Manager

Hi Likhitha V,

I’m not convinced this is a driver issue at all as the issue appears to be that something has decided to make the device hidden hence the other apps on the PC not being able to find it. However here are the steps I have just tried as outlined in your
reply.

• 
  The webcam I have is an eSecure webcam, this is connected to a USB port and I know that power is being supplied to the Camera as the lights on the camera can be turned on.
  
• 
  Opened the Camera App (as supplied with Windows 10) and the “We can’t find your camera message” appears.
  
• 
  Opened Device Manager
  
• 
  Expanded Imaging devices. Used the menu option under View to Show Hidden Devices. USB2.0 Camera is then listed.
  
• 
  Right clicked on the device and selected Uninstall. Message box asking me to confirm Uninstall appears and I select OK.
  
• 
  Webcam is removed from Device Manager list.
  
• 
  Removed Webcam from USB port.
  
• 
  Restarted PC and opened Device Manager. As anticipated no Webcam under Imaging devices even when Hidden Devices is selected.
  
• 
  Re-attached Webcam to USB port. Device is still not visible under Imaging Devices.
  
• 
  Opened Camera App and the “We can’t find your camera message” still appears.
  
• 
  Scanned for hardware changes in Device Manager and the Webcam is still not visible.
  
• 
  Power still being supplied to Webcam as the lights still operate.
  

So now I have a webcam attached to the system that I cannot see in Device Manager or use under any app.



When I ended up in a similar state to this before, by following similar steps (as described in other forums found by searching Google for this issue) I had to restore my PC back to a previous Restore point.
To get the Webcam to be visible in Device manager again.



Regarding drivers, the manual supplied with the webcam states that the “eSecure Webcam does not require an installation driver CD. Simply plug in the USB wire to your computer and the drivers will automatically
be installed”. As mentioned in my original post the Webcam worked when it was first attached but something, somewhere chose to make it invisible to the system.



The help on the error message mentions it may be blocked by Antivirus software. I have Windows Defender running and cannot see any setting that may be causing this blocking to happen but I'm not certain that
I know enough to state that this categorically not the case.



Do you have any other ideas for me to try? Do I revert back to the restore point to at least get the PC to recognise the Device (albeit in a hidden state)?



Any further help would be appreciated.

 

port COM and LPT in the Devices Manager are not appearing

Original message: Bluetooth and Port COM

How to found the port COM and LPT in the Devices Manager (showing hidden devices) using windows 10 in a ASUS cumputer model TP301UA?. Neither, these are not appearing using the prompt command. So, it is possible to pearing it with bluetooth devices but not
connect it to receive GPS signal