Did you do what I said? You don't need or want Boot Camp Assistant.
Do you want to read or find out why? been there done that.
Treat it like a PC. Don't make it complex.
After 6 yrs and 8 months there is a forum for Windows on Mac aka Boot Camp as well as a support page.
Most don't even read the pdf or instructions from in Boot Camp Assistant.
ONLY purpose for BCA was for single drive setup.
You don't need to know about GPT and UEFI and what happens when there are two drives present with GUID.
Mac 101: Using Windows on your Mac via Boot Camp
Helpful Apple Support Resources (Forum Overview)
Boot Camp 4.0, OS X Lion: Frequently asked question
http://manuals.info.apple.com/en/Boot_Camp_Install-Setup_10.6.pdfhttp://manuals.info.apple.com/en/Boot_Camp_Install-Setup_10.6.pdfcreate a Windows support software (drivers) CD or USB storage mediahttp://support.apple.com/kb/HT4407
The Boot Camp Assistant can burn Boot Camp software (drivers) to a DVD or copy it to a USB storage device, such as a flash drive or hard drive. These are the only media you can use to install Boot Camp software.https://support.apple.com/kb/HT4569
- Installation Guide Instructions for all features and settings.
- Boot Camp 4.0 FAQ Get answers to commonly asked Boot Camp questions.
- Windows 7 FAQ Answers to commonly asked Windows 7 questions.
Macs that work with 64-bit editions of Microsoft Windows Vista and Windows 7
Anyone can just go and look up the Apple tech notes.
Boot Camp: Frequently asked questions about installing Windows 8
SummaryLearn more about how Mac computers can run Windows 8 using Boot Camp 5.
Boot Camp, Windows 8
General installation questionsWhat is Boot Camp 5?
Boot Camp 5 is not a release of OS X software. Rather, it is a release of the Windows Support Software (drivers). You will need to use this software on your Mac with Windows 8 or Windows 7. For more information on Boot Camp 5, see this article.
Which Macs support Windows 8?
- MacBook Air (Mid 2011 or newer)
- MacBook Pro (Mid 2010 or newer)
- Mac Pro (Early 2009 or newer)
- Mac Mini (Mid 2011 or newer)
- iMac (27-inch, Mid 2010 or Mid 2011 or newer)
What are the System Requirements for Windows 8?
Please see this article.
How can I install Windows 8 on an eligible computer?
Use the Boot Camp Assistant. The assistant will partition your internal hard drives and install Windows 8. For more information on Windows 8 installation, see the Boot Camp Installation & Setup Guide.
Can I use an upgrade from Windows 7 to Windows 8?
Yes. Download and install the Boot Camp 5 Support Software before attemping the upgrade by using the Boot Camp Assistant in OS X Mountain Lion v10.8.3. Alternatively, you can manually download the Boot Camp 5 Windows Support Software here.
When I do an upgrade install from Windows 7 to Windows 8, an "Uninstall USB 3.0 eXtensible Host Controller Driver" message appears. What do I do?
Do not click on Uninstall. Click the back button and Cancel the upgrade. Download the Boot Camp 5 Support Software by using the Boot Camp Assistant in OS X Mountain Lion v10.8.3, or click here to download them. Then, try the upgrade again. See this article for more information.
After upgrading from Windows 7 to Windows 8, Thunderbolt devices are being recognized when I connect in. How do I fix this?
Disable the Windows 8 Fast Boot feature to allow Thunderbolt devices to be recognized. See Boot Camp: Thunderbolt devices not recognized after Windows 8 upgrade for instructions.
Is there an OS X version requirement to use the Boot Camp Assistant to download Boot Camp 5 Support Software?
You need OS X Mountain Lion v10.8.3 or later installed to download the Boot Camp 5 Support Software (Windows drivers) using the Boot Camp Assistant. After upgrading, click the Go menu and choose Utilities. Then, open Boot Camp Assistant and follow the onscreen instructions. You can download the Boot Camp Installation & Setup Guide.
Is there a download of the Boot Camp 5 Support Software if I'm not using OS X Mountain Lion v10.8.3?
Yes, you can download the Boot Camp 5 Support Software here.
How do I use the Boot Camp 5 Support Software I downloaded from the web page?
- The download file is a .zip file. Double click it to uncompress it.
- Double-click the Boot Camp disk image.
- Copy the Boot Camp and "$WinPEDriver$" folders to the root level of a USB flash drive or hard drive that is formatted with the FAT file system (see question below for steps on how to format).
- Install Windows, leaving the flash or hard drive attached to the USB port of your Mac.
- Installation of the drivers can take a few minutes. Don't interrupt the installation process. A completion dialog box will appear when everything is installed. Click Finish when the dialog appears.
- When your system restarts your Windows 8 installation is done.
How do I format USB media to the FAT file system?
Use Disk Utility to format a disk to use with a Windows computer. Here's how:
Important: Formatting a disk erases all the files on it. Copy any files you want to save to another disk before formatting the disk.
- Open Disk Utility.
- Select the disk you want to format for use with Windows computers.
- Click Erase, and choose one of the following from the Format pop-up menu:
- If the size of the disk is 32 GB or less, choose MS-DOS (FAT).
- If the size of the disk is over 32 GB, choose ExFAT.
- Type a name for the disk. The maximum length is 11 characters.
- Click the Erase button and then click Erase again.
Which versions of Windows are supported with Boot Camp 5?
64-bit versions of Windows 8 and Windows 7 are supported using the Boot Camp 5 Support Software. If you need to use a 32-bit version, you need to use Boot Camp 4 Support Software, and you must use Windows 7. 32-bit versions of Windows 8 are not supported via Boot Camp. For a complete list of Windows OS support, click here.
I receive a "Free up space on Drive C" message when I try to do an upgrade install from Windows 7 to Windows 8 on my MacBook Air (11-inch, Mid 2012). Why am I seeing this?
There is not enough free space available to do an upgrade install with the 64 GB SSD configuration. Delete the Boot Camp partition and do a full install instead. See this article for more information.
I see a black screen or distortion when I install Windows 8 on a MacBook Pro (Retina, 13-inch, Late 2012). How do I fix this?
The Windows 8 installer does not contain the correct graphics driver for your computer. You'll need to attach the USB media that contains the Boot Camp drivers during installation to address this issue. See this article for more information.
The volume controls keys (F1 and F2) won't work on my iMac (Mid 2011). How do I control the volume?
Use the Settings Charm to control screen brightness. See this article.
My MacBook Air (Mid 2012) will not start Windows 8, or displays VGA graphics when it stats up. How can I fix this?
Your MacBook Air (Mid 2012) needs an EFI Firmware update to address this issue. Download and install the MacBook Air EFI Firmware Update 2.6.
I see a "Windows 8 is not supported on this Mac" message on my Mac. Can my Mac run Windows 8?
For a complete list of Mac computers and the Windows operating systems they support, click here.
I tried a long time to do what you're trying to do...it seemed impossible to format a drive with two partitions with different formats. Not being too computer savy, I came up with the idea to format the drive for mac use, install OSX, use Boot Camp Assistant on this drive to install Boot Camp (setting the Boot Camp partion to the size I wanted...in my case,75GB), and after the BC installation, to use Disk Utility to erase everything on the OSX partition. I now have Boot Camp on part of the drive and an apple partition to do what I want with...I'm using it for storage, but after erasing it, you could clone anything you wanted to on it.
A - Do not use BCA. Use the Windows DVD. Pull all the drives but the one you want.
BCA works around creating a Master Boot Record.
B - Clone Mac OS X to the drive, pull the others, and you can get there.
C - You can also setup free space partition to go after Windows volume.
BCA is a dumb one trick pony that does not like GPT unless you set it up to use Windows UEFI
You won't find anything in Apple tech articles. You can from reading Windows FAQ on UEFI and GPT.
The Boot Camp Forum has others who have had to learn how to work around, how to have two internal hard drives, how to jump through hoops.
Did you install OSX on the new drive? Did you then use BCA from the new drive's OSX to create a partition and install Boot Camp on the new drive? When you create the BC partition, make it's size 500GB...this should only reformat this BC partition and leave the remainder of the new drive (3.5TB) the way it was. From there on you can handle the partitions as separate entities.