Macbook 15 Retina Bootcamp Windows 7 64bit When I go through the bootcamp process, then get to the windows 7 setup screen.  I format the bootcamp partition like the instructions say, then click next with that highlighted and get the error:

Setup was unable to create a new system partition or locate an existing system partition.  See the Setup log files for more information.


I'm on a 15" Macbook Retina.  I do NOT have any:
External Drives, other USB Drives plugged in.

The only thing I have plugged in is the USB with the Windows 7 Setup files.

I had this same issue when trying to install windows 7 via usb on my Desktop (moving to a SSD) but I was able to go around that issue by just installing from the current installation on the HD.  Obviously I can't do that here.  

Do I need a specific kind of USB stick?  or what should I look for?

Update
Checking the logs from the command prompt I see a bunch of errors:
Couldn't find boot disk on the bios based computer

I believe since my USB stick is capped at 480mb/s (based on the sys info) I'm using a USB2 stick and I've swapped sides.
Lots of potential gotchas are mentioned here:
https://discussions.apple.com/thread/3259726?start=0&amp;tstart=0

Including the type of stick (USB 2.0 vs. USB 3.0), the port its plugged into, etc.