Tech Tips Home
The Best Tech Tips And Daily Deals
Newsletter On The Internet!

WorldStart Tech Tip And Store Search
Email: Password: Login Remember Me

Like what you see here? Subscribe to the Tech Tips newsletter!   Email: Subscribe

Troubleshooting Your USB Ports

Tuesday, April 10th, 2012 by | Filed Under: Hardware & Peripherals

George from IN writes:  

Something has caused our desktop computer to stop “reading” jump drives inserted into the two frontal USB drives. It isn’t a problem with the jump drives themselves, because they function fine in a different computer. Is it likely that the problem is anything other than physical damage to the USB drives?

Hi, George.

I’m a little confused by your question.  At the end when you said “physical damage to the USB DRIVES” did you actually mean “physical damage to the USB PORT”?  I ask this because your jump drives ARE your USB drives. 

At a guess, I would say that there are two possibilities.  There would have been three, but you’re already well on your way to troubleshooting this by checking the jump drives themselves.  If they’re working, as they seem to be, then you’ve eliminated that problem.

My next guess would be that your USB ports have failed.  I don’t know how old your computer is, but this happens with time.  The way to troubleshoot the ports is to try plugging another USB device into each of the ports.  Something simple like a USB-powered light would be best, because that gives you immediate feedback.  Plug it in, give it thirty seconds or so for the computer to recognize it, and see if turns on.  If the light works in both ports, then I’d say that it’s time to take your machine and your jump drives into your friendly neighborhood computer repair center and let them have a go at it.  If your computer doesn’t recognize it, or the light won’t come on, then you’ve probably got a failed USB port.  If the light works in one, but not the other, then plug your jump drive into the one that the light worked in, and see if it works.

Once you’ve determined that it’s your USB port, the next thing that you have to do is determine if it’s a hardware failure or a software problem, which would probably just be some kind of junk (that’s a technical term) in the driver for the USB port.

The first step in troubleshooting this is to open your device manager.  There is a way to do this through the control panel, but for my money, it’s much easier just to open it through the search.  The way to do this is to click Start then, in the search box, start entering “device manager” without the quotation marks.  It will probably populate before you even have “device” entered.

Click on Device Manager, and that will open the manager for you.  At or near the bottom, you should have an entry that says “Universal Serial Bus controllers”.  Click on the arrow to the left of this to expand your USB devices. 

What you’re looking for are your USB hubs.  Count the number of entries here and see if they match up to the number of USB ports on your computer.  In the example, I know that I have four USB ports on my computer, so there’s no hardware failure on my machine.  If you have four USB ports, but only two are showing up in your device manager, then two have failed.  If the USB ports are not hardwired into your motherboard, and you’re comfortable doing it, then just open your machine and reseat the USB port cord onto your mother board.  IF YOU ARE NOT COMFORTABLE OPENING YOUR MACHINE AND DOING THIS, THEN HAVE A PROFESSIONAL DO IT.  When I was doing computer repair, a lot of hardware errors were attributable to people messing around with the hardware who didn’t know what they were doing.  You can do a lot of damage here fairly easily.  If reseating them doesn’t work, replace them.

If they show up in your device manager, but still don’t function, it could still be a hardware problem.  The USB port will still register correctly, but the surface inside the port may have become damaged, rendering it impossible to read the devices.

The final option, if they are showing up in your device manager but not functioning, is that the driver may have become corrupted.  The best way to take care of this is to uninstall and reinstall the driver.   The way to do that is to right-click on all of your USB controllers and then click “uninstall”. 

Once you’ve done that, reboot your computer so that it can install new driver software software.  Vista and 7 will do this automatically, while XP will require you to follow a series of on-screen prompts. 

Hope that this helps.

~Randal Schaffer

Tags: , , , ,

2 Responses to “Troubleshooting Your USB Ports”

  1. Rod says:

    I wonder if George’s problem could be as simple as the way his jump drives are formatted? Personally, I have several usb drives, and some of them do not work in other computers, depending on whether they are using the FAT, FAT32, or NTFS format.

  2. Rick says:

    You might want to clean the USB ports also. You would be surprised at how much dust and dirt you will find in a USB port.

Leave a Reply

Like these tips? Get them for FREE in your email!

WorldStart's Tech Tips Newsletter

  • Tech Tips Daily - Become a tech pro! Get the very best tech and computer help sent directly to your email every weekday!

  • Tech Tips Weekly - If you don't want our Tech Tips newsletter every day, then sign up for this weekly newsletter to get the best information of the week. Sent on Fridays.

Other Newsletters

  • WorldStart's Daily Deals - Every week, we send out great deals in our Daily Deals newsletter. Many of these deals are exclusively for our Daily Deals newsletter subscribers and can't be found with our regular specials.

  • Just For Grins - Each issue includes a couple clean jokes, some funny quotes, and a hilarious reader's story. Newsletter is sent five days a week.

Enter Email Address:


Your e-mail address is safe with us!
We only use it to send you the newsletters you request. It is NEVER disclosed to a third party for any reason, ever! Plus, if you decided you don't like our newsletters (don't worry, you'll love them), unsubscribing is fast and easy.

Free Newsletter Signup

Tech Tips Daily

Become a tech pro! Get the very best tech and computer help sent directly to your email every weekday!

Tech Tips Weekly

The week's best in tech and computer help. Get your issue sent to your email every Friday!

WorldStart's Daily Deals

The very best deals on the Internet! Get a new set of incredible sales every day of the week!

Just For Grins

Clean jokes, funny quotes, and hilarious comics. Sent 5 times a week straight to your email.


Love Worldstart? Refer A Friend!

WorldStart's Premium Membership

Tip Archive