Currently Being ModeratedMar 22, 2013 5:13 AM (in response to maxia)
Have exactly the same problem after removing a previous failed attempt to install Boot Camp. Exactly the same partition sizes too which is interesting.
Currently Being ModeratedMar 31, 2013 11:13 AM (in response to Steve Howells)
That 2.2 TB partition is how Apple solved the problem of Bootcamp not working with 3 TB drives. The one parition is split so the first partition fits within the allowable partition size of 2.2 TB, needed for the Windows installer to work. Partition 0 is then split again to allow the bootcamp partition to be added at the end of partition 0:
I had the same problem as Maxia, with my first attempt installing Windows failing and getting the two partitions. I got to step 3.4 in the Boot Camp installation guide. After formatting the BOOTCAMP partition, then clicking on Next, the Windows installer said it could not find the specified partition. I went back to Mac OS, deleted the Boot Camp partition using Boot Camp Assistant, did it again from the start, and got the same results. I finally got it to work by rebooting using command R, to get into OSX recovery mode, choosing Disk Utility and running Repair Disk Permissions on the OSX partition. I then rebooted to the Windows install procedure, and everything worked as it should. I'm not 100% sure that repairing the permissions is what really did it; maybe just exiting the Windows installer, rebooting to Windows, and running the installer again would do the trick.
I also had a problem getting Boot Camp Assistant to download the Windows support software; as an alternative, you can download them directly from the Apple website at http://www.apple.com/support/bootcamp/downloads/. I also had problems getting the Nvidia graphics driver to load correctly in Windows, but on the third manual installation, it worked. All this should have gone a lot smoother, but in the end Windows 7 looks fabulous in the iMac 27" monitor, and the iMac 680MX graphics card is quite impressive. This is the way to do serious gaming on an iMac, with the only cost the Windows software, which is just under $100 on Amazon, for either Windows 7 or Windows 8 (the OEM System Builder Pack).