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I accidently pulled out my western digital harddisk and ever since its not getting detected on my macbook pro and imac. The error msg which pops up says "The disk you inserted was not readable by this computer".

I want to get my HDD working again and i don't mind losing the data. Can you please suggest some solution to format and get the hard disk working again.

Disk utility detects the drive but none of the repair options are enabled.

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you'd try to startup from your OSX installer CD/DVD and repair from there... –  Ye Lin Aung May 17 '11 at 6:16
    
Can you elaborate a lil more on the steps? –  Praveen S May 17 '11 at 6:17
    
Also add it as an answer so that i can upvote it. –  Praveen S May 17 '11 at 6:17
    
what's your HD format ? NTFS or FAT32 or else ? –  Ye Lin Aung May 17 '11 at 6:22
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you'd try to startup from your OSX installer CD/DVD and repair from there

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I am not sure of the HD format, its mac os compatible. I accidently pulled the usb plug out and ever since i am getting this error. –  Praveen S May 17 '11 at 6:28
    
Erase it using Mac Disk Utility. Then try the partitioning again If it fails again, use Disk First Aid on it to see if it has errors. –  Ye Lin Aung May 17 '11 at 6:35
    
When i use mac disk utility the options are not enabled. However in the left panel i can see the HD. –  Praveen S May 17 '11 at 6:44
    
so you'd try to boot up with the CD/DVD surely =) –  Ye Lin Aung May 17 '11 at 8:03
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