Question Successfully cloned HDD to SDD, now unable to format HDD

Nov 28, 2018
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I have successfully cloned the OS from my HDD to new SDD using the Samsung software. Disconnected the HDD, booted up with just the SSD and everything works great. Now I want to format my HDD and use it for secondary storage.

The device manager and bios both recognize the old HDD, but it's not displayed under file explorer. Going into Computer Management/Disc Management, I can see the HDD but it has the message "disk is offline because it has a signature collision". I also have no options when right clicking any of the sections.

How do I go about formatting this HDD?
 

USAFRet

Titan
Moderator
Any instructions on how to do this step by step? And what kind of USB dock do I need, and for what purpose?
A USB dock would be used to power up the old HDD AFTER the system is up and running on the SSD. No signature collision possible.

Then via the commandline:
https://www.windowscentral.com/how-clean-and-format-storage-drive-using-diskpart-windows-10
 
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