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Dwight BaerFlag for Canada

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Why can't I see my second hard disk?

I have a SATA 160-GB hard disk that won't boot.  I'm trying to connect it as a second drive in another desktop PC, in order to read and save the data files.
When I go into BIOS, the BIOS sees the drive correctly.

But when I boot the machine, Windows Explorer doesn't see it.  When I go into Computer Management --> Disk Management, this disk shows up as Offline.  The error message reads "The disk i offline because it has a signature collision with another disk that is online".

What can I do to read/repair this drive?  Thanks
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Avatar of Kyle Abrahams, PMP
Kyle Abrahams, PMP
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Perfect.  Thanks.
You have a signature collision. For more information on fixing them, I'd recommend http://blogs.technet.com/b/markrussinovich/archive/2011/11/08/3463572.aspx if you want to keep the data on the drive.
Hmmm... Very interesting article.

The diskpart solution (above) worked for me.  I guess I was lucky.