Hi guys, I have a MBP 12" mid 2010 with a new HDD where I installed ML. I want to install in dualboot windows 8, which I need mostly for the Office Suite (the serious one, not the mac one). I tried creating a partition (FAT) when I cleaned installed ML yesterday (I created one partition for ML that works fine, and a FAT partition where I wanted to install windows 8) but I can't install windows. I created a win 8 bootable USB with bootcamp, I restarted the mac holding the option key and selected the USB drive. When I have to choose the partition I get the error you can see as attachment. I tried clicking "advanced option" and formatting, but nothing changes. I also tried deleting the partition and creating a new one via utility manager, but still same problem as above. I tried installing Tuxera and formatting the partition in NTFS, trying to install win8 and again the same problem. I obviously kept trying to format via the window installer utility. I also tried creating the partition with bootcamp, but same problem appeared. I really don't know what to do. Can you guys please help me? Thank you, P.