Usb driver not working on Windows 7

We are facing some troubles when connecting VEX IQ robot to the computer on Windows 7. Everytime it brings an error massage tells that: “COM port COM#1 can not detect a VEX IQ brain”. as shown in the attached pictures.
I searched for the problem on the forums, and i got a solution ( However, this problem appears again and again every time i restart my computer!