How to fix missing COM ports in Device Manager

Matthew Adams
by Matthew Adams
Windows & Software Expert
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  • After updating the Windows OS, the desktop COM ports might disappear from Device Manager.
  • You will need to restore them and in this article, we're showing you how.
  • Learn how to master your Windows OS from our extensive tutorials in the Windows 10 Hub.
  • Be prepared to deal with any software-related issue with our Troubleshooting Guides.
com ports device manager

The Device Manager usually lists COM ports for desktops. However, those COM ports can sometimes disappear from the Device Manager window after users upgrade their Windows platforms.

It’s only natural to wonder where the COM ports have gone. Thus, you might need to restore missing COM ports so they can configure them via Device Manager.

How can I restore missing COM ports?

1. Update motherboard drivers

One way to restore missing COM ports in Device Manager is to update antiquated motherboard drivers.

You can do that either manually or using a dedicated tool such as DriverFix, which will scan for devices and components that need driver updates.

DriverFix automatically update drivers

To add this tool to Windows 10, go to the website indicated below and download it for free.

After installing and opening DriverFix, it will scan your system.

The software will then display a list of antiquated device drivers that it can update. Click the Update button if the scan shows that motherboard drivers need updating.

DriverFix

DriverFix

Not sure if your motherboard drivers need updating? This efficient tool will help with all the necessary driver updates.
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2. Select the Show hidden devices option

  1. Open the Win + X menu and click the Device Manager.
  2. Then click the View menu.
  3. Select the Show hidden devices option.

Show hidden devices option device manager add com port


3. Add COM ports

  1. Open Device Manager as explained above.
  2. Click the Action menu.
  3. Select Add legacy hardware.Add Hardware window device manager add com port
  4. Press the Next button on that window.The Install the hardware option device manager add com port
  5. Select the Install the hardware that I manually select from a list radio button.
  6. Click the Next button to open a list of hardware to add.Hardware types list device manager add com port
  7. Then select Ports (COM & LPT) on the list, and press the Next button.
  8. Select the manufacturer for the ports or the Standard port types option, and click the Next button.
  9. Press the Finish button.

So those are some of the potential fixes that should restore COM ports in Device Manager. Afterward, you can configure the ports as required.

If you used another method to fix this problem, share it with the community using the comments section below.

Editor’s Note: This post was originally published in October 2019 and was revamped and updated in October 2020 for freshness, accuracy, and comprehensiveness.

Editor's Note: This article was originally published in October 2019 and was revamped and updated in October 2020 for freshness, accuracy, and comprehensiveness.
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