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I have a external 2.5 sata hard drive to usb 2.0 it use to should up and now when I plug it it says hard drive not recogize. Did I lose all my informatiuon or is there a fix.

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You can attempt to run a Command-line utility called CHKDSK. Check Disk will attempt to repair any misplaced or unreadable pieces of your hard-drive.

Two methods maybe required.
First running CHKDSK while in Windows:

Start > Run > Type "cmd" and hit enter.
Type N:\ (N is the drive letter assigned)

If your drive is no longer receiving a drive letter it may be required that you attempt to mount the drive in an external OS, such as BackTrack3.

BackTrack is a free Live OS, Meaning it boot's and runs off of a CD. Simply download and burn the ISO (Disk Image) and then when booting your computer follow the instructions on your screen for your Boot Options Menu and Select Boot From CD.

Once booted, Plug in your drive and BT should recognize it. If it can be recognized, you will be able to attempt to repair, or at the least should be able to bring your data over.

***In the event that your drive is physically failing, and to be safe, please prioritize what your going to attempt to save before attempting this and work as quickly as possible.
Get BackTrack3 here:

While the BT method may seem like a long and tedious process, its important to note that aside from actually replacing the electronics inside your drive, this is about the only way you can get your data back.

I wish you the best in this endeavor.

If you have any questions please let us know. If this information was helpful to you, please take a moment to rate the solution. Thank you.

Posted on Apr 23, 2009

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