Installing Android Studio on windows 7

You need to follow the following steps to install android studio on windows 7 

1. Download and install jdk 1.7 or higher from the following url http://www.oracle.com/technetwork/java/javase/downloads/index.html

2. Set JAVA_HOME environmental variable as follows. To do this follows the steps
Start menu>>right click on computer>>Properties>>Advanced System Settings >> Advanced>> Environment Variable>>New  

3. Download and install android studio. Download android studio from the following url http://developer.android.com/sdk/installing/studio.html

 You can view video tutorial for doing this from youtube.com. Visit the following url  http://www.youtube.com/watch?v=IaSduduwHKc