toshiba external HDD no longer recognized

July 14, 2011 at 03:47:50
Specs: Windows Vista
i have a toshiba exturnal harddrive it worked fine but now when i plug it in under computer it just says removeable disk F andwhen i click on it it says please insert disk what is rong

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July 14, 2011 at 04:56:21
The external drive housing interface is responding properly. The drive itself has an issue, or has failed. In this instance, data recovery is slim.

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July 14, 2011 at 07:27:14
Your problem is VERY COMMON.

Troubleshooting USB device problems including for flash drives, external drives, memory cards.
See Response 1:

Check that out first.

If the USB port and the USB cable connection(s) you're using ARE capable of allowing the external drive enclosure and the hard drive inside of it to be recognized properly....

If you have not dropped the drive or otherwise damaged it, your problem was probably caused by you NOT clicking on the Safely Remove Hardware icon in your Taskbar and STOPping accessing the drive BEFORE you unplugged the drive while Windows was running.
See response 2:

There are several programs that you could try that will probably fix your problem.

Specifically, links to some programs that can repair the data damage are here -
see response 2:

That post also has info about testing the external enclosure's hard drive. Apparently, the Windows version of Seagate's SeaTools can test any hard drive brand when it's in an external enclosure. (The bootable Dos version of it CANNOT.)
Do the long test.

Another one.
Apparently Easeus has a data recovery program that is very good, and some people have had success when they used it when no other program they tried could fix the problem - but it's not free :

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