This post lists the main steps in order to install an Android development environment for Windows 7.  The developement environment relies on Eclipse.

  1.  Download a JDK (7u3)  from the following page: http://www.oracle.com/technetwork/java/javase/downloads/index.html.
  2. Install the JDK
  3. Set the environment variable JAVA_HOME that points to the installation directory of the JDK
  4. Download Eclipse Classic (3.7.2)  from the following page: http://www.eclipse.org/downloads/
  5. Unzip the Eclipse package where you want to install it.
  6. Download the  SDK starter package from http://developer.android.com/sdk/index.html.
  7. Install the SDK starter package
  8. Launch Eclipse and install the ADT plug-in
    1. Select “Help > Install New Software….”
    2. Add the Indigo repository:  http://download.eclipse.org/releases/indigo
    3. Add the repository https://dl-ssl.google.com/android/eclipse/
    4. Select “Developer Tools” and click next until it gets installed
    5. When Eclipse will restart, you will have to install some SDK’s.