ST3320820u2-rk hard drive powers up ok, power light on, message on pc "usb device not recognised " .one of the usb devices has malfunctioned and windows does not recognise it.

Only Win98SE requires driver.
Windows XP, Vista, 7 or 8 - no drivers required

rather doing a driver hunt which can take hours

http://download.cnet.com/slimdrivers-free/3000-18513_4-75279940.html

it might take some time being a freeware driver solution

note: it will find all of your outdated drivers

this is a free driver solutions
they will automatically search for and find the correct driver

also at cnet
http://download.cnet.com/2000-20_4.html
on the home page you should see a search tab just type in what you are looking for
IE: motherboard name sound drivers
you might have to try a few times to get it right

http://download.cnet.com/drivermax/3000-18513_4-10572602.html

Windows 2000/XP/Vista/7/8 free driver program

http://download.cnet.com/drivers-for-free/3000-18512_4-75548155.html

Windows XP/2003/Vista/Server 2008/7/8 free drivers

http://www.downloadcollection.com/device_doctor.htm

Device Doctor is a freeware Windows application that scans your computer hardware and checks to see if there are new driver updates available for your devices. It also locates drivers for Unidentified Devices in the Windows Device Manager. This tool was designed to be very simple and easy to use

http://www.innovative-sol.com/drivermax/
free program, paid update available

hope this helps

The problem may be there in your hard drive, try the hard drive with another computer and if the problem persists, go to the nearest Service Center of the Manufacturer.

Hope this helps, Mrityunjay.

The power adapter could be faulty.
If you get an error message"Insufficient power to operate USB device" when you plug a USB deviceinto the computer's USB port, then this device is drawing excessive currentthat the USB port cannot supply. In case such as this, youneed to purchased a powered USB hub and connect this hub into the computer'sUSB port and then connect the USB device into this powered USB hub.

1. check the usb ports is enabled or not..
2. and check your system security...
3. if both is correct definetly it shows..
4. go to device manager and check it the universal ports are active or not..
5. if everything is fine then it also not show it means connect other no.of ports....
6. and if any seagate instaliing cd installing is having means first do that one...
7. Thank you..

Try to plug it in to another PC to see if you get the same message. See if you can run a scan disk on it from Windows to see if it's bad or going bad too.

To be honest, device not recognised is a bad sign. :(

If it is listed in the many serial numbers on seagate website you can get it fixed under warranty, Info might be lost though. If it is just a power issue then that is what they will replace call first to get a solution.

Seagate disco duro externo
si estás usando un cable USB la computadora deberia encontrarlo automaticamente, el programa es solo para proporcionarte utilidades.
si quieres recuperar estas funciones puedes bajar varios de estos en el siguiente enlace:
http://www.seagate.com:80/www/es-la/support/
busca tu modelo y baja el programa recomendado de hecho esos los puedes usar el mismo programa para varios modelos

si te sirve la ayuda no olvides darme un rating
gracias

I had the same exact problem with a WD2500xms passport. The problem was the USB cable. I went to the store and bought a 6' USB cable ( $26 at Radio Shack) with the same specs and now, no more problems. Also I called WD technical support (800.275.4932) and asked for a new cable. The WD customer serverice was very helpful and said it would sending me a new cable for free. When it arrives I'll return the 6'er.

no hablo ingles