How to delete GPT Protective Partition

To delete a GPT protective partition under Windows just follow these steps:

1. Download and install the DiskPart tool
2. Run the DiskPart tool in a command line box (cmd.exe)
3. Type "list disk" to show all available discs
4. Use "select" command to select the disc you want to clear, e.g. "select disk 3"
5. Use "clean" command to clear the GPT partitioned disc

Afterwards the disc can be partioned with any partitioning tool (e.g. Partition Wizard)

A detailed description of the DiskPart tool and its options can be found here