USB NOT RECOGNIZED - Maxtor 160GB OneTouch III Mini USB 2.0 External 160 GB Hard Drive

Sir/Madam

1. Is the printer turned on?
Make sure the printer is turned on.
Make sure the power cord is securely plugged into the electrical outlet.
Test the power by plugging in the power cord of another electrical appliance to an electrical outlet and turn it on. If the power to the other electrical appliance comes on, the printer may be considered to be faulty.
If this product is recognized:
Close this page to return to the installation window.
If this product is not recognized:
Proceed to the next step.
2. Are your computer and the printer correctly connected?
Make sure the USB cable is securely connected to the printer and to your computer and check that the USB cable is not damaged nor badly crimped.
The printer will not be recognized during the driver installation if connected to a printer switch or the printer buffer. If this is the case, try to directly connect the printer to your computer using the USB cable.
If you are connecting the printer to your computer via a USB hub, connect the printer to the first-tier hub from your computer. If the printer driver is still not recognized on your computer, try to directly connect the printer to your computer without the USB hub.
If you are connecting the printer to your computer via a USB hub, make sure the USB hub device is recognized by your computer.
If this product is recognized:
Close this page to return to the installation window.
If this product is not recognized:
Proceed to the next step.
3. Does your computer provide USB or IEEE 1394 support?

If Still Your Problem Is not solved Then Click On Below URL
http://files.support.epson.com/htmldocs/r1800_/r1800_rf/dset_1.htm

Or

Still You have problem Then please Follow Us On HP Printer Support

go to device amanger then uninstall all usb drivers from computer then restart the computrer then it autoinstall all usb drivers.
tehn connect your usb mouse cable to computer try all usb port then if problem arise then your mouse usb chip has issue.

Thanks for using fixya.
Please rate solution if it helps.

the device is not recognized, this error comes out from USB connector, try another USB connector if the problems continue, or transfer it to another USB ports...

This solution worked for me when I got the USB device not recognized message:
http://www.infobarrel.com/USB_Port_Repair
It can be quite frustrating. I've heard that older computers are more likely to have the USB device not recognized message.

if usb flash memory is working on other computer/laptop then do the following step.

Insert the usb flash memory.
Goto desktop, right-click my Computer, click Properties, click on Harware tab, click Device Manager button.

There should be yellow exclamation(!) sign showing Unknown Device
Right-click and select UnInstall.

Reboot your laptop
Insert the usb flash memory.

It should work.

Your phone would normally come with software load this software onto your pc, if you do this then your pc will recongnize

maybe the USB is rusty or dirty...it also happens to me

mostly, mp3 devices comes with a software.

if u have the software, and the usb dont recognize your mp3 device. most probably the problem is in you usb drive or usb connector.

It's either the USB port, the drive electronics itself, or the USB cable.

First I'd try a different USB cable.