The disk signature of disk 1 is equal to the disk signature of disk 0

Keith Owen
Keith Owen used Ask the Experts™
on
Issue is as above, disk 1 is now offline as it has the same signature of disk 0.

How do i go about changing the signature? can this be done? so that I can bring it online as I think its causing data issues.

OS Windows 7 64bit

thanks
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IT Product Manager
Top Expert 2009
Commented:
You can do it but for this you must erase the drive first. Means you download the Disk Tools from its vendor website (WDDiag for WD or Seatools for Seagate).
And fill the drive with zeroes. This will erase the data on the drive!!! So make sure you have backup.
After that disconnect and re-connect the drive. It must become in Windows new GUID.
Or you use different approach as written by Marc Russinovich: https://blogs.technet.microsoft.com/markrussinovich/2011/11/06/fixing-disk-signature-collisions/

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