I am trying to uninstall Kali dual boot and remove grub which I have put on an External HDD. When I go and try to format the partition in Windows I cant because it informs me that the external harddrive is "Unallocated Space". When I ran the Kali insatllation I set the hdd to ext2 file system. I can boot into Kali just fine. I would be very greatful to whoever can help me!