W7 64 bit.
I've done exactly like you said, but it didn't work.
The I downloaded the new attachment, the first one in the 1st page and the 2nd one in the 6th page to fix the driver's loading problem.
So, I opened the program, clicked on Enable Test Mode, then Exit. Restarted my computer.
Done again the 2nd step, opened the cmd, tried to load the driver, it didn't work, still says it failed.
OT: Even tried to use DK's bypass, since they have the same AC, but unfortunatly it didn't run as I expected!
Tried to use the PE to suspend the xsherlock and the xxd processes and it didn't work.
EDIT: What if we tried to update the DK's bypass, would it work for you?
Whatever, I'll wait for your answer