Hello all I've been trying, for the last 8 hours to install Windows via Boot Camp without any success Some information: MacBook Pro (13-inch, Early 2011) OS X Yosemite Windows source file: en_windows_7_professional_x64_dvd_X15-65805.iso 1. The first problem I had was that Boot Camp wouldn't enable the "Create a Windows 7 or later version install disk" 1.a) I tried burning a DVD without success 2.b) I finished by changing Boot Camp Content Folder as instructed here. 2. Once, with the USB installed I partitioned my HD via Boot Camp but, after restarting the computer, I would receive a message asking me to insert a valid bootable drive. 2.a) I searched some more and found out that only GUID partition type USBs will boot. 2.b) I checked the USB Partition Map Scheme and it says: Master Boot Record 2.c) I changed the partition type back to GUID but, of course, when Boot Camp reinstalls Windows it goes back to MBR... 3. Why in the earth would Boot Camp create a non bootable bootable drive??? 4. What am I doing wrong? Thanks a lot!