Why does my computer not recognize my hard drive?

Windows 7 does not recognize SimpleTech 250GB external USB drive ...

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Just bought a new computer, running Win 7. Drive worked fine on Win XP. ... Windows 7 does not recognize SimpleTech 250GB external USB drive ... I find it hard to believe that a external USB 2.0 drive can't work with Win 7. There must be ...

SimpleTech dvi hdmi pc Hard Drives Questions & Answers ...

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Question about SimpleDrive 160 GB External USB 2.0 Hard Drive ... Question about250GB USB2.0 7200 RPM External 250 GB IDE Hard Drive ... my PC does not recognize the external drive 96300-40001-001 Driver Problem: Check whether ..

Try a different usb port on the computer. Maybe the usb port you are using is bad.

Try the portable drive on another computer and see if it is recognized. If not, the portable drive might be defective.

the hard drive will not be recognized because the BIOS has been affected by the battery removal

Hi did you try in other computer if yes and still didnt work do you listen any noise on the hard drive .
another thing to do to be sure that the usb ports are working fine in your computer its not been disabled bu bios or an antivirus please plug a flash drive or other hard drive in the computer and see if it gets recognized if yes then your system dosent have any issue .and check the hard drive if it dosent get recognized in the other computer also then may be the partitiontable is corrupt or your iomega hard drive case has problem.
To remove data from your hard drive in the worse case u need to remove the hard drive and plug it to the system directly and check
Thanks

> possibility that the HDD is already defective

Can it work in another port or another computer?Try these option if all fails maybe the device is bad.

bad hard drive

disconnected from the computer and reconnect.
if it still doesn't recognized the device, disconnect and shut-off the power and wait 1 or 2 min. than re connect again.
with all that, if the machine still can't recognized the drive, then the drive need to be check with another work machine, make uure it is in working condition.

First I had to reseat one of the drives which had worked loose and become unseated during shipping. Then I had to format the hard drive and finally I had a 1TB external hard drive I could use. The light is still red.

Try to connect to another computer, and see if it recognizes the drive. If Not, you can dismantle LaCie and take the disk out.

Connecto your disk to another external box (USB or Firewire) so you can have access to you data.