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How to fix missing COM ports in Device Manager
3 min. read
Updated onMay 15, 2024
updated onMay 15, 2024
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Key notes
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.
Why is COM port not detected in Windows 10?
If the COM port isn’t detected, you’ll get aUnable to open serial port messageon your PC. This can occur if the software can’t recognize the device you want to connect to the PC.
Other ports can also encounter issues, and users reported thatUSB ports aren’t workingon their PC. This is most likely a driver issue, and it can be fixed with a update.
Speaking of issues, there are reports thatArduino port isn’t showing upfor some users, and this is most likely caused by driver issues, so reinstall or update them.
How can I restore missing COM ports?
1. Select the Show hidden devices option
You can also use dedicatedmotherboard information software. These can give you precious specs about your motherboard, CPU, BIOS, or memory. They can also detect issues such as the one at hand and help you fix them.
2. 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 adedicated driver updating tool, which will scan for devices and components that need driver updates.
3. Add COM ports
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.
Learn how to master your Windows OS from our extensive tutorials in theWindows 10 Hub.
Be prepared to deal with any software-related issue with ourTroubleshooting Guides.
More about the topics:windows 10
Matthew Adams
Windows Hardware Expert
Matthew is a freelancer who has produced a variety of articles on various topics related to technology. His main focus is the Windows OS and all the things surrounding it.
He is passionate about the tech world, always staying up-to-date with the latest and greatest. With an analytical view, he likes problem-solving, focusing on errors and their causes.
In his free time, he likes to read and write about history and tries to always develop new skills.
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Matthew Adams
Windows Hardware Expert
He is passionate about everything surrounding Microsoft’s OS, focusing on troubleshooting guides & tips for everyday problems.
