Gives inaccurate road info so decided to try an update. Plugged in properly but computer ( Vista XP) won't recognize the device when plugged into USB port.

USB hard drive is a portable external storage device that works just like a conventional hard drive. The device is simply plugged into a USB port on your computer as you would connect a flash drive. Unlike a flash drive, however, a USB hard drive can store a much larger amount of data. If your computer will not recognize your USB hard drive, you can try troubleshooting steps to resolve the problem.

Plug one end of the USB cable into the port on your hard drive and plug the other end into the USB port of your computer. Ensure that both ends of the cable are connected securely. Open "My Computer" (Windows XP) or "Computer" (Windows Vista/7). The USB device should be listed as "removable disk" once it is plugged into the computer. If it is not listed among the available drives on your computer, proceed to the next step. Ensure that the data cable is working properly. Try another USB cable if you have one available. Disconnect all other USB devices from the computer as they may interfere with the operating system detecting the external hard drive. Reboot the computer if the USB hard drive is still not recognized. Plug the USB cable into another USB port and check to see if the device is detected. If you are using a USB hub, remove the device and plug the external hard drive directly into a USB port. If the computer still fails to recognize the device, the external hard drive itself may be experiencing a hardware problem. Check the status of the hard drive in the "Device Manager" window. Under Windows XP, right click "My Computer" and select "Device Manager." For Windows Vista and Windows 7, click the "Windows" button in the lower left corner of the screen, then type "Computer Management" in the search bar and press "Enter." Select "Device Manager" in the "Computer Management" window. In the Device Manager window, click the "+" sign that appears beside "Disk Drives." If the external drive is not listed, click "Other Devices" in the Device Manager window and see if an "Unknown Device" appears. The external hard drive may have been detected but the device is not working properly. If it is still under warranty, take the device to the computer store where it was purchased to have it repaired or replaced. Hope this helps.

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A USB hard drive is a portable external storage device that works just like a conventional hard drive.

The device is simply plugged into a USB port on your computer as you would connect a flash drive.

Unlike a flash drive, however, a USB hard drive can store a much larger amount of data.

If your computer will not recognize your USB hard drive, you can try troubleshooting steps to resolve the problem.

Plug one end of the USB cable into the port on your hard drive and plug the other end into the USB port of your computer. Ensure that both ends of the cable are connected securely.

Open "My Computer" (Windows XP) or "Computer" (Windows Vista/7).

The USB device should be listed as "removable disk" once it is plugged into the computer.

If it is not listed among the available drives on your computer, proceed to the next step.

Ensure that the data cable is working properly.

Try another USB cable if you have one available.

Disconnect all other USB devices from the computer as they may interfere with the operating system detecting the external hard drive.

Reboot the computer if the USB hard drive is still not recognized.

Plug the USB cable into another USB port and check to see if the device is detected.

If you are using a USB hub, remove the device and plug the external hard drive directly into a USB port.

If the computer still fails to recognize the device, the external hard drive itself may be experiencing a hardware problem.

Check the status of the hard drive in the "Device Manager" window. Under Windows XP, right click "My Computer" and select "Device Manager."

For Windows Vista and Windows 7, click the "Windows" button in the lower left corner of the screen, then type "Computer Management" in the search bar and press "Enter."

Select "Device Manager" in the "Computer Management" window. In the Device Manager window, click the "+" sign that appears beside "Disk Drives."

If the external drive is not listed, click "Other Devices" in the Device Manager window and see if an "Unknown Device" appears.

The external hard drive may have been detected but the device is not working properly.

If it is still under warranty, take the device to the computer store where it was purchased to have it repaired or replaced.

Hope this helps

Ok I experienced this problem before..try to plugged your phone to the other usb port of your laptop try it at the back the power of the usb port there is sufficient to make your device to function properly..I tell you this because some of the usb port except from the back of a pc CPU gives insufficient power to a usb device that can make the usb that was plugged in it not work properly and not recognized by windows.

try a different usb drive. if you are using win 7 or vista uninstall that device driver you downloaded. if its xp re install your usb drivers from the windows site just go to your device manager
win 7 vista click on computer sys prop device manager see if drive is connected hit update driver or roll back. same with usb system on win xp right click my comp. go to prop, then device manager let me know if this helps. but really important to make sure that you are plugged into a usb port in the back of the pc not thru a hub

Try this one
http://download.cnet.com/Realtek-AC-97-Driver-Windows-Vista-Windows-7/3000-2120_4-10962344.html

ur vista version has a problem with usb portable devices so either u have to upgrade ur vista to the latest on or install windows 7 or down grade ur laptop and install windows xp

Hi there,
I would try visiting the Cannon offical website,
Make sure you have your correct model number for the usb device and try searching for a correct updated driver for your device and your operating system.
Sometimes there are viruses that can effect widnows in ways that can cause your pc not to recognise devices etc. in this case try AVG anti virus its free.
Try uninstalling everything printer related completly unplug the device, turn off the computer and unplug it, then start again. Make sure you dont plug the printer in untill you have re installed the device,
try changing USB ports where its plugged in and try a different cable.
Windows XP is a pain for USB devices and usually with older hardware will pop up the Device not recognised.
Also in case you incidentally modified something go into start , help and support, fixing a problem, then, using system restore to undo changes and look for a little icon and text saying run the system restore wizard.
Follow the steps and restore your computer to an earlier time say a few days ago when it worked. It still helps to back up all your info just in case...

I know your really not going to like the last option here, but back up everything settings ie internet, files and pictures and turn off your pc and insert the windows xp cd and try reinstalling fresh.
also make sure you have your xp key the number you have to input or youl have to ring microsoft.

Hope this helps you out
Cheers
Steve

I had the same issue. I would plug it in and it would recognize the device then it would disappear.

What I did to solve the problem was to first turn on my Gamin 200w. After it was finished loading maps then I plugged in in to the usb port. My machine recognized the device without any problems. I am running Windows Vista Home Premium. Hope that helps.

Check which version of Windows Media Player you have loaded.
Open Windows Media Player. Click "Help" and "about". This should show which version you have.
Windows Automatic Updates may hve updated to version 11.

The Philips HDD6330 is only compatible with version 10 under Windows XP.

If you have version 11, then uninstall and it should roll back to version 10.