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Re: Usb ports do not work
Try going into device manager and deleting the USB devices, Reboot and let Windows try and reinstall the drivers. If that doesn't fix your problem post that it didn't work and I'll get another message.
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Your USB ports on your computer are plug and play. If you have issues with your USB port, it is port related, driver related or device related. The following solutions will help you identify the problem to resolve your USB port issues.
To Identify a Working USB Port
Begin troubleshooting your USB ports by checking Device Manager to see if your USB ports or hubs are working properly.
Click the Start button. ClickControl Panel.
ClickSystem and Maintenance.
Double-clickUniversal Serial Bus controllersand check to see if all your USB ports, hubs and controllers are functioning correctly. Any devices not functioning will have a yellow exclamation mark in front of them.
If Device Manager shows any USB ports, hubs or controllers are not functioning, check for updated drivers.
To Update the USB Port Driver
An out-of-date BIOS driver can create issues with your system recognizing the USB port.
Printers are particular about which usb port they are plugged into, a virtual printer port is assigned to USB1 in the computer, when you select the printer port for it to use. You may need to plug the printer into each USB port, until you fine the USB port 1 which it works in, remember to always connect it to this same usb port, otherwise it will not work. There is only one USB port number 1.
Step 1 Before you start working on the USB port, make sure that your device is not the problem. If the computer says that the there is a new USB device but that it cannot use it, typically there is a problem with the device's driver and not the USB port. If this is the case, your best option is to re-install or upgrade the device driver. Try inserting the device to another computer. If the device works, most likely the problem is with the computer and not your device.
Step 2 Try rebooting the machine. Rebooting a computer resets all of the software to the default state and will clean up many issues. The start up process also checks all of the devices on the computer and can sometimes fix a USB port. First shut down the machine. Connect the USB device up to the computer and start it. This reboot will sometimes fix a bad USB port.
Step 3 Try attaching the USB device on to another USB port on the same computer. If the device now works, the old USB port probably has a hardware or BIOS issue. Skip to step 5 to try to fix a bad USB port through the BIOS. Fixing a hardware problem on a USB port requires working on the motherboard which is typically more expensive just adding a new USB ports.
Step 4 Uninstall your computer's USB device bus manager. The device manager controls the USB access and sometimes gets corrupted. Fixing the USB device manager requires administrator rights on the machine. The best way to uninstall the device bus manager is to right click on your computer's icon and select properties. This will bring up the hardware settings for your machine. Click on the hardware tab and select the device manager. The device manager lists all of the devices on the computer. The next step is to open up the "Universal bus controller" option. Right click on all of the items under this option and uninstall them. Once all of the devices have been removed, restart the machine with the USB device connected. Upon reboot, windows re-installs the USB device manager. Most of the time, this will fix the USB port.
Step 5 The next thing to try is to check the BIOS. Restart the machine and enter the BIOS setup screen. You should check to make sure all of the USB ports are active. If they are, you should try resetting the BIOS settings to the defaults. The BIOS reset will sometimes fix USB port. But if it does not you will have to consider upgrading the BIOS. Upgrading a computer BIOS is very dependent on the motherboard manufacturer and you will have to visit your computer manufacturer's web site for detailed instructions.
Step 6 The last trick to try to fix a USB port is to repair your OS. Sometimes the USB drivers can get corrupted and break the USB ports. You can reinstall the system files onto the computer which should fix the USB port. Your data files should not be changed in this process, but it is a good idea to do a full backup of the computer ahead of time. In windows, an OS re-install is done by loading up the windows installation CD/DVD and selecting the repair windows installation. Just follow the steps and you often have a fixed USB port at the end of the process.
does your usb mem stick have any light indicators? if yes , whenever you put you usb stick, does it light? if it lights are USB ports is still ok, You just have to reformat or partition you USB stick.
(you can also try other devices like usb mouse or any usb devices that lights up when you connect it)
if there are no lights if you plug, or no indication that a power goes to your stick, its possible that your usb your are busted. if this is the case, if your laptop has a PCMIA slot, you can find a pcmia USB card, if you dont have. your only option is replace the motherboard.
Right-click My Computer on the Windows desktop and then
Click the Device Manager tab to display the Device Manager
window as shown at the right. (For Windows 2000 systems, click the Hardware
tab and then the Device Manager button.
In the Device Manager list, click the + sign next to Universal
serial bus controller.
Verify that a USB host controller and a USB root hub are listed below Universal
If Universal serial bus controller, USB host controller or USB root hub
are not listed, close the Device Manager and go to USB port incorrectly configured
If Universal serial bus controller, USB host controller and USB root hub
are listed but one or more display a yellow exclamation point, go to USB controller
If you have Windows XP, right-click the Host Controller and select
Properties from the drop-down menu. If you see this status message in the
Properties window: The drivers for this device are not installed (code 28),
go to Windows XP USB 2.0 driver not installed .
If Universal serial bus controller, USB host controller and USB root hub
are listed but one or more display a red X, go to USB controller or root hub
disabled in Windows Device Manager.
port incorrectly configured in BIOS
NOTE: The procedure in this section is intended for advanced users only. Incorrect
BIOS settings could prevent your computer from starting or operating normally.
If you are not experienced in making changes to your computer BIOS, consult
your computer instructions or contact your computer manufacturer for assistance
before attempting the steps below.
Follow the instructions of your computer to view the BIOS settings. These
settings are sometimes called CMOS settings or system setup.
To view the BIOS settings, press a key, such as F2 or Delete, just after
you turn on the computer. Instructions often appear on the screen briefly
when you turn on the computer. Also check the instructions and manuals provided
with your computer.
Look for USB Interface or a similar setting in the Advanced Setup,
Peripheral Configuration or another section of your computer
Follow the onscreen instructions or read the computer documentation to enable
the USB port.
Follow the onscreen instructions to save the new settings and restart the