My Seagate 500GB external hard drive feel on the floor while I was moving my computer and now my computer isn't picking it up. How do I trouble shoot this?? I really don't won't to lose the info on my harddrive. Help!!

Try to copy something else to it, if that does not work you have something wrong with the computer or drive. If so rip to your hard drive then move over to the external drive.

there is,open the 500gb external case and take out the hard drive. go to your nearest computer shop and pick up an empty external hard drive case for internal drives.make sure its a sata drive,get your hard drive and put it in and reconnect it to your computer. those cases run around 80 bucks to you may need to look online for one to get a better deal

Access the manufacturer's web-site:

http://support.seagate.com/customer/warranty_validation.jsp?form=0

and enter the model-number, and the serial-number, to see if the disk-drive is still under warranty.

If so, Seagate will replace it, at minimal cost to you.

This sounds most likely like there is media/platter damage occurring if you feel the motor turning. Nothing you can fix on your own, you need a professional with a clean room to examine the issue.

Download the drivers from seagate. http://www.seagate.com/www/en-us/support/downloads/

Even a short drop like that can produce a deadly blow to a disc type hard drive. Here is their website which has a diagnostics tool for the hard drive available. Good luck, hope you dont have a paper weight on your hands.

Do not despair - check out the documentation on page 3 (you'll need Adobe Reader to open this PDF file):

http://www.seagate.com/support/freeagent/FA_Pro_15_QSG_US.pdf

Hope this helps

It could be your USB or firewire. i had a problem with my h drive and now i'm using a ps3 usb cable instead

the external hard drive has failed

Turn off your computer and then plug in the FreeAgent external drive. Then try turning your computer on, it should read.  If it doesn't I would go to the Seagate website for troubleshooting.