I realize that this is an old post...but I am having this problem.
So far I have been using a Windows 7 PC with btool for debugging my ble profile development. This worked fine for me because I used he Windows 7 PC to debug and used a Windows 8 PC for development (I have IAR 8.11 and SmartRF installed there).
I want to start using my Windows 8 PC for debugging and I find that I an unable to install the driver (for the CC2540 USB Dongle) in Windows 8.
Any pointers to a signed driver?
- R