I need Help ASAP!
I format my Mac ( and it’s not the first time to do it) and the last step is to install the system but the thing is whenever I tried to install it I have to sign in to the App Store over and over again! Then Eventually this message appeared to me “this item is temporarily unavailable” and I read that I have to enter another Apple ID I used my sister’s But still the same problem (model is MacBook Air A1466)
All I see now is this black screen!