I was running Boot Camp to get Windows on my computer and I accidently wiped my hard drive. Well, technically I wiped it and now it's formatted in the NTFS format. I would love to get my Mac operation system back on. Unfortunatly the NTFS is read-only and I need it to be in HFS+ to reload the operation system. Is there any coding that I can put in terminal to make it format back to HFS+? If not, then is there anything else that may fix the problem?