Hi, recently my WD mybook stopped showing in "my computer", it still shows in the windows disk manager.
I think maybe it is possible to repair the partition?
I searched google and saw people were using DMDE to repair partitions.
Could someone tell me if the partition is repairable, if so how to repair? Thanks.
Here are some screenshots

You need to write zeros to LBA 0 and then reconstruct the GPT Protective MBR and Partition Table.

To fill LBA 0 with zeros ...

Edit -> Edit Mode
Mode -> Hexadecimal/Text

Tools -> Fill Sectors

Pattern - Hex - 00
Start Sector - 0
End Sector - 0
Number of Sectors - 1

To reconstruct the partition table, write the following data to LBA 0:


Select Drive -> Apply Changes.

I have followed the instructions in the following document:

An Examination of The Microsoft Windows 7 and 8 GPT 'Protective' MBR and EFI Partitions:
http://thestarman.pcministry.com/asm/mbr/GPT.htm

Please clone your drive before attempting the above. The procedure applies to a Windows data drive, but I'm not sure if Apple is any different.

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A backup a day keeps DR away.

Instead you might want to try Gparted to repair Apple partitions.
The live cd iso is available from sourceforge http://sourceforge.net/projects/gparted ... ve-stable/