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WD 1TB MyBook Essential (WDH1U10000-00) not recognized-unknown device

Hi, my Ext. HDD: 1TB MyBook Essential (WDH1U10000-00) is gone all of a sudden.

It will not show up in My Computer at all, so I have no way to access it. I tried to connect with different USB 2.0 Cables (short/long) and diff laptops, PCs but it is not detected any on env.

In Comp. Management, it is shown as Unknown - Not Initialized and there is no partition bar on its row shown as in below picture links.

http://imageshack.us/photo/my-images/534/xcad.png/

http://imageshack.us/photo/my-images/545/be43.png/

http://imageshack.us/photo/my-images/812/u4ri.png/

http://imageshack.us/photo/my-images/542/7o3v.png/

Any idea for resolution?

Note: OS: Win7 and followed stesps of FAQ: External hard drive no longer shows up in My Computer and data can no longer be accessed all is done (except step#7, not needed)

I can provide more logs screenshots, feel free to ask

Thnx

I`ve been using this Ext. HDD for 6 years and have important data inside of it. I dont want to lose them. How can I fix this issue? 

I cant even see its Vol. in TestDisk software

After watching Youtube videos and Googled articles, I felt that, If I go for Initializing a new partition from now on, all my data will be lost, right?

(Nearly same issue: http://www.youtube.com/watch?v=UeEBpquaoIM)

So, how can we proceed for resolution without losing any data?

UVCView.x86 output

—===>Device Information<===—
English product name: "My Book "

ConnectionStatus:
Current Config Value: 0x01 → Device Bus Speed: High
Device Address: 0x05
Open Pipes: 2

===>Endpoint Descriptor<===
bLength: 0x07
bDescriptorType: 0x05
bEndpointAddress: 0x81 → Direction: IN - EndpointID: 1
bmAttributes: 0x02 → Bulk Transfer Type
wMaxPacketSize: 0x0200 = 0x200 max bytes
bInterval: 0x00

===>Endpoint Descriptor<===
bLength: 0x07
bDescriptorType: 0x05
bEndpointAddress: 0x02 → Direction: OUT - EndpointID: 2
bmAttributes: 0x02 → Bulk Transfer Type
wMaxPacketSize: 0x0200 = 0x200 max bytes
bInterval: 0x00

===>Device Descriptor<===
bLength: 0x12
bDescriptorType: 0x01
bcdUSB: 0x0200
bDeviceClass: 0x00 → This is an Interface Class Defined Device
bDeviceSubClass: 0x00
bDeviceProtocol: 0x00
bMaxPacketSize0: 0x40 = (64) Bytes
idVendor: 0x1058 = Western Digital Technologies, Inc.
idProduct: 0x1100
bcdDevice: 0x0165
iManufacturer: 0x01
English (United States) "Western Digital "
iProduct: 0x02
English (United States) "My Book "
iSerialNumber: 0x03
English (United States) “202020202020202020202020202020”
bNumConfigurations: 0x01

===>Configuration Descriptor<===
bLength: 0x09
bDescriptorType: 0x02
wTotalLength: 0x0020 → Validated
bNumInterfaces: 0x01
bConfigurationValue: 0x01
iConfiguration: 0x00
bmAttributes: 0xC0 → Bus Powered
MaxPower: 0x01 = 2 mA

===>Interface Descriptor<===
bLength: 0x09
bDescriptorType: 0x04
bInterfaceNumber: 0x00
bAlternateSetting: 0x00
bNumEndpoints: 0x02
bInterfaceClass: 0x08 → This is a Mass Storage USB Device Interface Class
bInterfaceSubClass: 0x06
bInterfaceProtocol: 0x50
iInterface: 0x00

===>Endpoint Descriptor<===
bLength: 0x07
bDescriptorType: 0x05
bEndpointAddress: 0x81 → Direction: IN - EndpointID: 1
bmAttributes: 0x02 → Bulk Transfer Type
wMaxPacketSize: 0x0200 = 0x200 max bytes
bInterval: 0x00

===>Endpoint Descriptor<===

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