If your computer is having problems with a recently installed device or other hardware, try using the Hardware and Devices troubleshooter to fix the problem. Open the Hardware and Devices troubleshooter. Please ignore the steps that you have already tried. I would suggest you to try the following methods and check if that helps. One of the USB devices attached to this computer has malfunctioned and windows does not recognize it”. I would suggest you to refer to the suggestions provided in the following Microsoft Community link given below and check if that helps. I certainly understand your concern and really appreciate all your efforts in trying to fix this issue. And also you are experiencing issue with “Ports (COM * LPT)" tab is missing from Device Manager” on the system.
Thank you for visiting Microsoft Community.Īs per the description, you are experiencing issue when trying to connect a USB to serial adapter and getting error message: “ USBĭevice not recognized. I really need to use this adapter and i waste a day reading and trying every single solution found on google.
I also have to mention that "Ports(COM * LPT)" tab is missing from device manager. I have also installed the driver found in the link i have pasted in this post. I have uninstalled all of the USB drivers and reinstalled them but the problem persists.
In my device manager i am able to see now an "Unknown device" listed under the "Universal Serial Bus controllers" tab.
One of the USB devices attached to this computer has malfunctioned and windows does not recognize it." Then after few seconds this message disappearsĪnd another one pops up "Unknown device successfully installed". When i plug in the cable i get a notification in the bottom right corner saying "USN Device not recognized. I have a problem when trying to connect a usb to serial adapter