Hello,

I have installed windows 7 on my macbook pro 13in late 2011. I deleted mac os a long time ago and today i changed my mind on installing it back. i made a half partition (unallocated) for mac os through windows. I went to the mac installation setup and went to disk utility and now the new partition ive made through windows is apparently disabled and only lets me to format the whole drive including the windows partition. Is there any way on how to install mac os without having the setup delete the whole drive?

I didn't find the right solution from the internet.
References:

http://www.tomshardware.com/answers/id- … -back.html

infographic video