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I have a Gateway laptop computer with 4 USB ports. Last week, all four ports stopped working. Using Device Manager, I uninstalled the host controllers and root hubs, turned off the computer, unplugged it and took out the battery, then restarted. Initially, all 4 ports worked, but within about 30 minutes of use two stopped working properly. Now 2 of the 4 ports work properly, and the other 2 do not. The two non-working ports provide power (I can charge an iPod), but they do not recognize the device - a "hardware not recognized" box appears on the taskbar and Device Manager shows an "Unknown Device" under the USB Controllers list - even though I can use the device on one of the two working ports.
This computer is about 3-1/2 years old. Any other advice, or does this sound like a motherboard problem?
Most likely a motherboard problem, though you can try and re-do windows, best bet on getting it all to work is Turn off CPU, Unplug Power cable, And all usb devices, let it sit for about 20mins. Plug it all back in. Turn on the CPU! Though this might really get on your nerves having to do this multiple times, id get a new motherboard.
I think u r using pirated windows. nad ur autoupdate is on. i think if u reinstall windows it may work fine. i suggest to format c: and reinstall window to be sure
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If ALL the usb ports have stopped working, this is a problem with the USB controller. The short answer is that you cannot easily repair this. In all probability, the controller, or a circuit trace to it has blown or shorted. You would need to get another motherboard.
If one is still working, then you can get a PCIMCIA card to usb port that will give you 2-4 extra ports, but this will only work if at east one of your existing usb ports is still functioning
If you have tried every USB port and you use another USB device to it.. You may check the device manager and check if the USB controllers are disabled.. If not, you may click View and then click Scan Hardware Changes.. If still won't work, that is time that you call lenovo and have you laptop replaced defective USB ports..
Ok I think the best method to "Fix" this would be to get your self a 4 - 5 port USB card, they are, real cheap, insert it into a spare slot, inside your PC, and install the drivers, if any, and use that one. And simply ignore the other one all together.
Try removing all ports from your laptop, then reboot, and then create just one USB port. Also, go to your hardware devices and make sure your usb ports don't have any question marks or yellow warning symbols. Be sure first that the drivers for your USB ports are installed and working first. This sounds either a faulty USB cord, which does happen, or USB drivers issues in your laptop. The printer is probably not the problem here.
Hi, Did you install any Anti virus . Check the USB port for any physical damage. Try connecting a mouse with USB port to check if its working. After all this then the issue remain the same then the USB port needs an replacement. Regards.
A shot in the dark here, but try this: Click Start>Run, type devmgmt.msc and press enter. Click the plus sign beside "Universal Serial Bus Controllers." Right click each listing that appears underneath "Universal Serial Bus Controllers" and click Uninstall. Click OK on the confirmation dialogs. After you get done uninstalling all of them, restart your computer and Windows should reinstall them. After it is done, try that USB port again.
Your computer is functioning correctly.
The USB ports on your laptop are USB1 ports its pard of the hardware.
Your PCMCIA USB 2 card runs at USB 2 speed and therefore when you connect a USB 2 device to this port you will not get this USB message.
and check if the USB controllers are disabled.. If not, you may click View and then click Scan Hardware Changes.. If still won't work, that is time that you call lenovo and have you laptop replaced defective USB ports..
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