The past two days I explained that I wanted to to maximize the capabilities of my new Nook Color [NC] without altering its original state.  I explained both my plans and my preparation in detail.  Today I’ll explain exactly how I converted my NC into an Android Tablet.

NOTE: I completed this process using a computer running Windows 7.
My walkthrough requires you to have access to a wireless internet.

Walkthrough:

1. Insert the micro SD card into either an SD card reader or adapter and insert it into your computer.

2.  Download the generic-sdcard-v1.3.img and unzip the file.
http://forum.xda-developers.com/showthread.php?t=1000957