How to use Windows to install apps to Android x86

First off, you must have downloaded at least one app from Play Store in your Android device.

Steps:
in browser in Windows and in Android device must use same Google account to login.
in browser in Windows, go to play.google.com to install app.
then you'll see app is downloading in your Android device, app will be automatically installed after downloading.

If your Android device is power off, app will be automatically downloaded and installed after you turn on Android device and connect to Internet.