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There is a possibility that your hard drive has been physically damaged. I am saying this because unwanted sound and not being recognized are one of the symptoms of hard drive failure . So if the data is very important for you consult the data recovery specialist they will for sure help you out.
Try connecting the external hard drive to another computer to recover/backup your data. When you have such a large capacity hard drive, it pays to have a second large capacity hard drive to backup your data in the event of the other hard drive dying.Hard drives do fail especially if you accidently drop it.
I found that often, external hard drives just don't have any active partitions and thus don't show up in Windows. Go into the control panel, administrative tools, computer management and then the disk manager and see if it has a partition. If it's just unallocated space, right click and make one.
If it behaves like this for multiple computers with multiple operating systems, I would think that the problem is with the hard drive or with how the files were stored. I would recommend trying a free recovery utility: http://www.piriform.com/recuva
If this does not work, there are professionals who can do this service for you however it is generally expensive. As a last ditch effort, boot your computer from a free Ubuntu CD (http://www.ubuntu.com/download/ubuntu/download) and see if it recognizes your files.
If you have tried it on two PCs with the same result, the hard drive is most likely defective. If so, the computer may recognize it being plugged in with a beep but will not recognize it at all as an accessible device.
One thing you can check is if the hard drive was never initialized, meaning that there is empty space but the empty space isn't configured for the operating system to recognize and use. To do this:
- Go to "Start" and "Run" and type in "diskmgmt.msc" and hit "Enter". - A list will pop-up listing all hard drives on computer. Each row is a physical hard drive. - The main hard drive for your computer should be listed as "Disk 0" and the local disk in it should be "C:". - Assuming you have no other hard drive besides the external, the next row should be "Disk 1" and say "Unallocated", which means the hard drive was never initialized. In this case, right-click on it and select "Format". Click next through everything and the external HDD will be formatted so that Windows can recognize it. - MAKE SURE NOT TO FORMAT LOCAL DISK C:! - After that, the external HDD should be recognized fine and pull up in "My Computer".
Otherwise, if no other hard drive is listed, the external HDD is most likely defective and you will need to purchase a new one.
PLEASE GO TO CONTROL PANEL, CLICK ADMINISTRATIVE TOOLS, CLICK COMPUTER MANAGEMENT, ON LEFT PANE, UNDER STORAGE, CLICK DISK MANAGEMENT, WAIT A FEW SECONDS, MAXIMIZE PAGE,THEN SEE IF YOU CAN SEE IT. IF IT SAYS UNALLOCATED SPACE, RIGHT CLICK ,YOU WILL HAVE TO FORMAT USUALLY "NTFS". IF IT DOES NOT SAY UNALLOCATED SPACE, THEN RIGHT CLICK AND MARK PARTITION AS ACTIVE. .........HOPE THIS HELPS........JEFFXC
My friend it sounds like your hard drive. I know thats not what you want to hear. But don't worry there is hope! You can have the data retrieved from your hard drive by using this online company which I highly recommend: