Install React Native Windows

installreactnativewin.txt

How to install react native on Windows.

Install Python2(https://www.python.org/downloads/release/python-2714/), JDK, Node.js(www.nodejs.org) and Yarn(https://yarnpkg.com/lang/en/docs/install/).
Install React-Native by running 'yarn global add react-native-cli.'

Get the Android SDK Manager Command Line program from here (bottom of page): https://developer.android.com/studio/index.html
Get the Android ADB Tools:  https://dl.google.com/android/repository/platform-tools-latest-windows.zip
Unzip both put them under C:// or somewhere that you can access.
Modify path:
    This tutorial will get you to the correct window: https://www.java.com/en/download/help/path.xml.
    Choose path, and add the bin folder from the SDK Manager, and the root to the ADB tools.
    To verify what you did works, go to your home directory, and run adb and sdkmanager. So long as they output something you good, if not redo the previous step.

Now run 'sdkmanager --licence', and accept all the licences. 
Run react-native init <project name>. 
Connect your android device and verify by running "adb devices".
Run react-native run-android and wait.
If it works, you are now ready to develop react native applications using android.
Best of luck.