Can't install Windows 7 on Macbook Pro I want to install Windows 7 on my Macbook Pro(15'' mid 2012 version). It seems like only Windows 8 can be installed. I was using Windows7 on this mac before. I have erased it and want to install it again but this happens. Can someone please help me?

Thank You
Steve Chambers is right. 

As Windows release new versions boot camp is updated to support them and more often than not they drop support for the previous version of Windows. 

You could either install Windows 8.1 (it still has the start menu ;) ) or install Windows 7 under parallels desktop. 

I personally use parallels desktop as it allows me to use Windows and Mac at the same time. I run it on my 2014 MacBook Pro retina. No issues, everything runs perfectly.