i erased the machintosh hd partition when i tried to install windows 10 using bootcamp. when i open disk utilities mac hd is gone, i dont see it anywhere so im pretty sure its deleted. I reinstalled mac using lion and now i have an older version of mac and i cant update any futher. which is mac os x 10.7.5. before i tried installing windows i had mojave. I followed a guy on youtube and i type commands into terminal in windows to change windows file name so i could download it. is there a way to get machintosh hd back ?