Why can't I update my Macbook Pro's system to the newest version?
Hi,
I want to update my system to the newest version recently. But I found there were no response after I clicking the DOWNLOAD button in App Store. It seems I have no way to update the system of my Macbook Pro. Is there someone can help me to figure it out?
Thanks!
Ruixue
MacBook Pro, Mac OS X Lion 10.7.5 (11G63)