I have an 27' Imac 2011, which according to Apple is not supported for Windows 10 install. If something goes wrong, you are in danger of loosing data on your OS X partition. The most challenging step is creating the FAT formatted partition labeled BOOTCAMP. I do not consider the process to be that difficult. Will have to right click on the icon and select Compatibility Mode. Support software stored on the flash drive. After the Windows installation has completed, install the Boot Camp.System Preferences and instruct OS X to boot back to Windows. At some point during the installation, the computer will reboot.PARTITIONING DURING THE INSTALLATION PROCESS. The installer to reformat this partition as NTFS. Install Windows to the Boot Camp partition.Hold down theĪlt/option key and select the DVD icon with the label Windows.

Restart the Mac with the DVD in the optical drive.Burn the Windows 10 iso file to a DVD.The empty space, create a FAT formatted partition with the label Use the Disk Utility to reduce the size of your OS X partition.Theseįiles can be found at Boot Camp Support Software Use the same software as for a 64 bit Windows 7 installation. Transfer these files to a FAT formatted flash drive. Download the correct Boot Camp Support Software for your Mac.I assume here that your current configuration is the default 'Out of the Box' OS X installation. The Basic steps to install 64 bit Windows 10 are as follows. Since my answer was accepted as correct, I will repost it below. A different user recently posted a similar question on superuser.

Install windows on imac 2009