How to Remove GPT Protective Partition from a Drive in Windows

Warning: This procedure will erase all data on the disk. Please backup your data before proceed.

In Windows, you can use a program called DISKPART, which is a command line program, to remove a GPT Protective Partition from a disk. Here's how:

1. Bring up your Command Prompt program
2. Type DISKPART at the prompt
3. Then type list disk in DISKPART's prompt to show all disks on the machine.
4. Type select to set the specific partition: select disk 1
5. Then type clean will remove the GPT Partition from the selected disk

Now, you can go to Disk Management Console and start formatting the 'unallocated' partition on this drive. Have fun!