Installing cypress USB3 problem.

I tried installing the USB3 by following steps and I see the error as here http://imgur.com/a/OHtcI. 

Connect H/w
System Settings à Device Manager à Then there should be a unknown Device (as far as I remember its name was “WestBridge”)
Right-Click on the Device à Update Driver Software…
Search driver on the PC à Select Path to: “…\PATH\USB Driver\bin\win7\x64”
Click “Next”

Can you please help and give me a clue? The setupapi.dev.log is also attached.

Nilesh Kokane