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Usb ports not working

Everything is enabled and the computer says the device is working properly and i all ready tried letting windows reinstalling the correct driver, but still i get nothing when i plug in a junk drive ( it works on other computers so i know it's not the junk drive.) please help

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  • alex_b15 Sep 04, 2008

    bios is enabled and so is plug and play. but still no junk drive pops up or even recognized.

  • babcia_62 Sep 11, 2008

    I looked in services and plug and play is set at automatic and Universal is set to manual. Still my PC does not recognize the 3 USB ports on the front of my tower.

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  • E-Machines Master
  • 3,051 Answers

Have you booted into bios and looked to see if the usb ports are enabled and that the plug and play is enabled please try that and get back with me ok best regards mike

Posted on Aug 29, 2008

  • Michael Thomas
    Michael Thomas Feb 14, 2009

    also under device manager if the host controller driver is installed you will see the usb symboles there if it is not showing the usb symboles than u will have to install the driver under control panel add new hardware and add the controler from there ok

  • Michael Thomas
    Michael Thomas Feb 17, 2009

    Hi there again

    I was wanting to get back with you to see if the problem had been corrected or is it still occuring

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How to check fo faulty USB port


W 7
First, please disconnect all USB devices and then perform the following steps:
Click "Start" button, type "devmgmt.msc" (without quotation marks) in the "Search" bar and press "Enter". Click "Continue" if necessary.
In Device Manager, double click to expand "Universal Serial Bus controllers", right click on the Host Controller, click "Uninstall" and click "OK".
Repeat the step 2 to uninstall all items under "Universal Serial Bus controllers".

Then, restart your computer and Windows 7 will reinstall all USB controllers automatically.
for XP or earlier
Click start right click on computer select properties device manager scroll down universal serial bus controllers you could see a yellow question / exclamation mark? ! or a red X
you will need to update/reinstall drivers right click to reinstall drivers
if you can see your usb drive but its not working
ports (com&lpt) right click update driver if this fails to fix the problem
Check the USB leads that attach to the motherboard usually red white green black make sure they are securely seated and have no dust build up on them dust will cause static and a lot of unforeseen problems to a computer and its parts Check if USB Ports Are Damaged

USB ports are an important part of your computer's hardware.
Many devices connect to the computer via USB, such as music players, cell phones and digital cameras.
This connection lets you charge your devices and manage files on them.
When you connect a device to a USB port, it is typically recognized automatically.
If not, there may be a problem with the port. USB ports sometimes fail on their own, or they may be damaged by force.

Plug a variety of devices into the USB port you think is damaged.
If none of them work, the port is probably broken.
Connect the same devices to the USB ports on a different computer.
If they work, this is another indication your ports may be damaged.
Run Windows Update on your computer to ensure your devices and computer function together and have the latest drivers.
Click "Start," then type "Update" in the search bar.
Click on "Windows Update," "Check for Updates" and "Install Updates."

Open the Windows Device Manager by clicking "Start," then typing "device manager" into the search bar.
Click the Device Manager link when it appears.
Click on each of your USB ports.
In the Properties window, look for "This device is working properly."
If this is displayed for each USB port, they are not damaged, but there may be a problem with your device instead.
Click "Update Driver" next to each USB port in the Device Manager, and Windows searches for and installs the latest driver.
If one can't be found, go to your computer manufacturer's website, and download the driver there. Try to use the USB port again.
Sometimes, outdated or damaged drivers result in a non-working USB port.

Open your computer case by unscrewing or sliding off the side cover.
Use a can of compressed air to clean out the dust from inside, especially from within the USB ports.
If your USB ports are hooked up to the motherboard, remove the cable, then replace it.
These actions sometimes help to fix non-working ports.


http://askbobrankin.com/usb_ports_not_working.html

Sep 05, 2013 | Dell OptiPlex 780 Desktop Computer 1 x...

1 Answer

USB ports not working


Method 1: Use Device Manager to scan for hardware changes loadTOCNode(2, 'resolution'); Use Device Manager to scan for hardware changes. After your computer scans for hardware changes, it might recognize the USB device that is connected to the USB port so that you can use the device.

To scan for hardware changes, follow these steps:
  1. Click Start, and then click Run.

    Note If you are running Windows Vista, click Start, and then use the Start Search box.
  2. Type devmgmt.msc, and then click OK. Device Manager opens.
  3. In Device Manager, click your computer so that it is highlighted.
  4. Click Action, and then click Scan for hardware changes.
  5. Check the USB device to see whether it is working.
If scanning for hardware changes fixed the problem, you are finished. If this method did not fix the problem, go to Method 2.
Method 2: Restart the computer loadTOCNode(2, 'resolution'); If scanning for new hardware did not fix the problem, try restarting the computer. After the computer has restarted, check the USB device to see whether it is working.

If restarting the computer fixed the problem, you are finished. If this method did not fix the problem, go to Method 3.
Method 3: Disable and re-enable the USB controller loadTOCNode(2, 'resolution'); Use Device Manager to disable and re-enable all the USB controllers. This lets the controllers recover the USB port from its unresponsive condition. The USB controllers represent the USB ports in Device Manager.

To disable and re-enable the USB controllers, follow these steps:
  1. Click Start, and then click Run.

    Note If you are running Windows Vista, click Start, and then use the Start Search box.
  2. Type devmgmt.msc, and then click OK. Device Manager opens.
  3. Expand Universal Serial Bus controllers.

    Note You might have to scroll down the list to find this item.
  4. Right-click the first USB controller under Universal Serial Bus controllers, and then click Uninstall to remove it.
  5. Repeat step 4 for each USB controller that is listed under Universal Serial Bus controllers.
  6. Restart the computer. After the computer starts, Windows will automatically scan for hardware changes and reinstall all the USB controllers that you uninstalled.
  7. Check the USB device to see whether it is working.

Jan 02, 2010 | Evesham Axis PC Desktop

1 Answer

All USB ports on my emachines T6542 do not work


try to see the BIOS SET UP if the USB port are in enbled status..

if its not,, enabled them...

and see the connection of the USB port into your motherboard if it connect properly..

Oct 27, 2009 | E-Machines eMachines Desktop PC

1 Answer

All my computers usb ports have stopped working. when i put anything in a usb port it says usb device not recognized. i have reinstalled the drivers but still nothing works. did i fry my motherboard? but...


go threw the bios very carefully,make shure everythihng is set proper...then as a check try a usb laptop light..if it lights there is power to the ysb..if it dont..well you know it fried..if there is power try flashing the bios

Oct 09, 2009 | Computers & Internet

1 Answer

USB Troubles


How To Refresh and reinstall USB Ports Of Your Computer Hello there, the other day i tried refreshing and reinstalling the USB ports on my PC, as some of my connecting devices are not recognized. I present the detailed procedure on refreshing the USB ports.
Let’s go!!

Here are the steps to refresh/reinstall/uninstalling the USB ports on the computer.

The USB port needs to be refreshed to make sure that no other device has captured the USB port of the computer. The Mouse, video camera, your external USB hard disk; what ever it may be.

Follow the steps given below to refresh USB ports.

1. Right-click My Computer icon on the desktop, and then select Properties.
2. Click the Hardware tab.
3. Click the Device Manager Button.
4. Click the plus (+) sign to the left of Universal Serial Bus controllers.
5. Right-click the device listed under Universal Serial Bus controller and select Uninstall.
6. Click OK to confirm the removal of the device.

Please note, repeat Steps 5 and 6 until all the devices under Universal Serial Bus Controller are removed.

7. Shut down the computer.

CAUTION: Ensure that the Shut Down option is selected, instead of the Restart option.

8. Wait for 5 seconds and then restart the computer. When the computer restarts, a "Windows has detected new or added hardware" message window will open.

The above steps will refresh the USB ports.

Now connect the USB devices like mouse, video camera, your external USB hard disk...USB hubs...whatever you like and the drivers should install automatically.

Tip: It is always recommended to connect the main USB devices at the rear end USB port. As they require more power to initiate.


The above steps are for XP operating system. When coming to the matter of Vista, please note the changes below:
===========================
1) Right-click Computer icon from the desktop , and then click Properties to open the System Properties window, and then select the Device Manager tab.

2) Click the Plus (+) sign next to Universal Serial Bus Controllers/Root hub.

3) Click the USB Composite Device entry to highlight it, and then click Remove. If a screen appears to confirm the deletion, confirm the deletion.

4) Disconnect the USB cable to the all-in-one, wait a couple seconds, and then reconnect the cable. This should restart Windows device detection (Plug and Play).

5) A New Hardware found screen may appear, click next through all of the screens that appear for the Wizard to install the USB Composite Device. Click Finish once the wizard completes.

Sep 28, 2009 | Dell Dimension E310 PC Desktop

2 Answers

Usb ports


This can only mean on thing that the USB port on your computer is not properly working, what you can do here first is to run the setup CD for your motherboard so all the software including the driver for the USB port will be reinstall, if after that still not working the USB port of the computer is already bad...

May 27, 2009 | Computers & Internet

1 Answer

8gb Emprex flash drive has died. Windows does not see it and the light does not flash


check if the usb port is enabled under device manager. right click my computer then click manage. go to device manager and make sure that there are no red X or yellow ! on any of the devices. If everything is good, try your flash drive on another usb port or another computer. if other computers cannot detect your flash drive, it's broken.

Nov 10, 2008 | Computers & Internet

1 Answer

The flash drive purchased doesnot work when pjugged into the usb port on my desk top but it work on my lap top? How do I get it to work on my desk top


Hello claponte

FIRST, THE HARDWARE SIDE:
If you just purchased your flash drive, then it is using the USB 2.0 (high speed) standard. Prior to that were USB version 1.1 and, before that, USB 1.0 standards.

USB 2.0 devices will still work when plugged into USB 1.1 ports - just at a reduced speed)

However, computers w/ USB 1.0 ports cannot properly detect USB 2.0 devices. On those computers, you'd need to install a USB 2.0 expansion card in order to add USB 2.0 functionality to the computer.

SECOND, THE SOFTWARE (DRIVERS) SIDE:
On the software side, USB devices are "plug-and-play" on Windows XP & Vista systems. This means they do not require special drivers or installation for them to work properly. The drivers needed for them to operate are already built into the operating system.

However on operating systems prior to Windows XP (Windows ME, Windows 98SE, Windows 98...) drivers are needed for USB devices to be detected properly.

These are two possible reasons why your flash drives don't work on your desktop computer.
(01) The computer is an older one using USB 1.0 technology
(02) The operating system is pre-Windows XP

Another possibility is (if your computer USB ports are at least 1.1 standard and your operating system is at least Windows XP) there is an issue w/ the USB ports on your desktop computer. This could be a hardware or a software issue still.

Please, let us know if that's the case and we'll help you to trouble-shoot the issue.


Please, let us know if this response was helpful for you or, of course, if you have any further questions.

Thank you
BJ

Apr 03, 2008 | Computers & Internet

1 Answer

USB ports no longer working


After all done,
Did you think of replacing motherboard?

Feb 17, 2008 | Computers & Internet

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