problem connecting uno to win8

Using Arduino Installation & Troubleshooting
#1

Hello guys! Hope this is the right place.
I bought this arduino uno kit.
Downloaded the arduino software from the site.
I use WIN8.

  1. When connecting the arduino to the usb, two red LED turn on on the arduino.
  2. The port option in the arduino software is gray and i cannot choose anything.
  3. the "other devices" in win device manager has a yellow warning. when i try to choose the update driver from the arduino driver folder win "cant find driver software".
  4. When i choose manually the arduino.inf file to install, it installs but still the ""other devices" has the same error. By the way haven't seen any "authentication" problem like i read supposed to happen.
    any ideas?
#2

Is it an official board?
If not, you probably need a different driver.

#3