Erase Windows __full__ Official
Use a tool like Parted Magic (paid) or boot a Linux USB and run:
sudo hdparm --user-master u --security-set-pass p /dev/sda sudo hdparm --user-master u --security-erase p /dev/sda (Replace /dev/sda with your drive) erase windows
Once confirmed, proceed with the method above. Your Windows will be erased permanently. Use a tool like Parted Magic (paid) or