Remove GPT Protected Partition On a Hard disk in Windows XP

If you’ve ever formatted a hard disk in MAC OSX, it creates a special GPT protected partition which cannot be removed in Windows XP using the native disk management tool. However, with DiskPart utility, you can easily remove it.

Warning: All the data on hard disk will be erased if you use this method. Make sure you backup your important files.

1. Start Command prompt in Windows XP. Cick on “Start Menu”, then “Run”, type in “cmd” in textbox, and hit “OK”
2. Type “diskpart” and press enter
3. Type “list disk” and press enter. You will be presented with a list of hard disk attached to your computer. Note down the disk number of the desired hard disk.
4. Type “select disk x” replacing x with the disk number you noted in step 3. press enter.
5. Type “clean” and press enter.

Now you can use your disk partitioning tool or Windows Disk management utility to recreate partitions.

Warning: All the data on hard disk will be erased if you use this method. Make sure you backup your important files.