Many of you may have met with this problem – when you attach a USB device like printer, scanner, camera or portable hard disks to your computer port, your computer pop up a message “USB Device Not Recognized”!
No matter how you mess with it or restart your computer for several times, you just cannot handle it! What a pain in the neck! So I write this article to walk you through how to deal with this issue.
After reading this article, you will find out the cause of your problem and how to deal with it. If your computer display the message above, it means that it is not physical problems. So let get going.
1. Power Supply
Inadequate power supply may cause this USB unknown device issue. Few people cannot believe this. That really can be one of the causes. All you need to do is to shutdown the computer and unplug the computer power supply from the socket. Wait for minutes, then plug it into the socket and start the computer again.
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About the Author:
Mars, Computer Technology Expert, has been engaged in Computer Technology research for over 10 years.Main Research: Windows Operating System Optimizing, Computer Performance Improvement and Computer Error Solution. Personal Blog: http://www.alldriverupdate.net
