USB Hard Drives Won't Appear in Win 7 (Boot Camp)

[2.7 Ghz Core i7 Macbook Pro 15" running 10.8.5]
I have a 512 GB SSD that I run with a Boot Camp partition. I recently had to reformat the drive because I used a third-party app to resize my Boot Camp partition and it ceased to appear in Finder (though it booted just fine by itself). After formatting the drive, recovering my OSX install via Time Machine,  running the Boot Camp Assistant to create a new Boot Camp partition, installing Win 7, and running the Boot Camp setup.exe on the Windows side, I find that USB drives will not appear in Windows Explorer. I hear the "USB chime" when I plug/unplug drives, but drives never shows up. The same USB drives show up just fine in the OSX Finder.
I suspect it's a driver issue because when I first plugged the drive in under Windows I got a message about "Intel USB 3.0 Root Hub" and it was searching for a driver that it never found. However, I ran the Boot Camp setup.exe again, and tried updating the driver in Windows Device Manager. No dice.
This puts me in a spot, because my backup of my previous Boot Camp partition is on an external USB drive (via EaseUS), and when I boot from the EaseUS Recovery CD the USB drive doesn't show up in order to allow me to select the backup file I want to restore. (I would have used Winclone, but my partition was not mountable in OSX at the time due to the corruption. *sigh*)
I could probably live without backing up my previous Windows install since nothing on it is irreplaceable, but I definitely cannot live without being able to plug in a USB drive. What am I missing here?
Thanks!

if your question is how to get windows to work with apple filesystem
http://forums.macrumors.com/showthread.php?t=1088460

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