To access the disk you'll need to wipe the disk clean using "DiskPart" utility that comes with Windows XP.
WARNING: The following instructions will delete all content in your GPT disk. Backup anything you want to keep first.
Open a Command Prompt and run the command DiskPart. From the DiskPart console:
> list disk
> select disk 1
Just a little explanation.
|DiskPart list disk command output|
The list disk command will let you see all hard disks connected to the machine while select disk tells DiskPart which disk to apply subsequent commands to. Be sure you select the correct disk #! You don't want to wipe the wrong disk.
After this you should be able to create a new partition from Windows Disk Management console, or any 3rd party partition tool.
These instructions were gathered from the following blog post.
Command line hard disk cloning with gddrescue
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