1: Download and install this driver (http://www.silabs.com/products/mcu/Pages/USBtoUARTBridgeVCPDrivers.aspx) to make Block Erupters show up as COM devices.

2: Plug in your USB Block Erupters. If using a USB Hub, it must be a powered hub. Each erupter requires at least 0.5A at 5V. Depending on the hub, you may only be able to run 3-4 Erupters.

3: Download and unzip the GuiUSBMiner for your windows
https://sourceforge.net/projects/guiminer/files/GuiUSBMiner.zip/download
4 start GuiUSBMiner.

require .net framework 4

Features:

-Gui interface mining
-auto config gpu
-multi gpu supported
-cgminer kener

Source code

https://sourceforge.net/projects/guiminer/?source=dlp

Download

https://sourceforge.net/projects/guiminer/files/GuiMiner.zip/download

Features:

-Gui interface mining
-auto config gpu
-multi gpu supported
-cgminer kener

Source code

https://sourceforge.net/projects/guiminer/?source=dlp

Download

https://sourceforge.net/projects/guiminer/files/latest/download?source=files