install mountain lion

[aahhww]

Hi

I just bought new macbook air from friend and comes with preinstalled Mountain lion
and did format the hard drive , but i cant log in into my usb with has copy from app store , i just show some simple

help please

 

[clukas]

Hi

I just bought new macbook air from friend and comes with preinstalled Mountain lion
and did format the hard drive , but i cant log in into my usb with has copy from app store , i just show some simple

help please

it looks like your usb is not configured correctly. Did you follow the instructions how to create it correctly?

http://arstechnica.com/apple/2012/07/how-to-create-a-bootable-backup-mountain-lion-install-disk/