How to downgrade to stable ROM? Miflash failed to install on Win7

May 26, 2014
I'm on Win7 and device driver was not successfully installed. In Miflash application, my device is not detected.

I followed the instructions from below prompt and there's no "Select USB computer connection", actually nothing happens when I press menu button.

I'm trying to downgrade from 4.5.23 back to stable ROM.