Installation of Android Studio and SDK Tools

Preparation

Beforehand, you have to download the installers of Android Studio and JDK7 or higher from the following links:

Download Android Studio and SDK Tools | Android Developers

The file size of This installer has over 1GB. It may take times to download depending on your network speed.

Java SE Development Kit 7u79

Steps of Installation

1. First, install the JDK7. (It will take 5 to 10 mins)
2. For Windows, add a new system variable JAVA_HOME to Environment Variables. i. Select Start menu > Computer > System Properties > Advanced System Properties. ii. Then open Advanced tab > Environment Variables. iii. Add a new system variable JAVA_HOME that points to your JDK folder, for example: C:\Program Files\Java\jdk1.7.0_xx
3. After setting up the JDK, run the Android Studio installer (it will take about 10 mins for installation).

※ Updates: You can find the changelog of Android Studio from http://tools.android.com/recent.