Boot Camp 5 Windows 8 partition

So I haven't dual-booted in a while, I used to run Windows 7 Ultimate. Boot Camp worked fine. I recently have been trying to install Windows 8 Pro and Boot Camp just will not partition my drive. It keeps saying "An error occurred while partitioning the disk". I've tried it both with a bootable 8GB USB plugged in and an install DVD. I'm giving Windows 45GB and that leaves OS X with 101GB. What am I doing wrong? It's a MacBook Pro 13 inch, Early 2011, 500GB HDD, 8GB RAM, etc. etc.

Hi Paresh,
Yes, they are related...
EFI and SMC firmware updates for Intel-based Macs - Apple Support

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    MS Data                338695552  651468152  312772601
       MS Data                340391264  653163864  312772601
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