Missing digital signature for driver on Windows 8

Using Arduino IDE 1.x
47

It doesn't wok for me :disappointed_relieved: :disappointed_relieved: :disappointed_relieved:

I did all "Louis Davis" steps from 2 page.

My Arduino Micro and Arduino UNO detects as "Unknown device" in device manager
I click update driver then I select my driver location "D:\arduino-1.0.2\drivers\FTDI USB Drivers" or "D:\arduino-1.0.2\drivers"
after that I have this message:

701×281 6.59 KB

I using Windows 8 purchased from Microsfot.
please help.