SquareHome 3 is a highly customizable launcher that allows you to create a Windows 8/Windows Phone-style tile interface using your actual Android widgets. You can pin real apps like WhatsApp or Spotify to large, colorful tiles. It is modern, actively supported, and does not pretend to be a "simulator"—it just makes your phone look like one.
If you want to see the actual Windows 8 desktop, start menu, and system files, you’ll need an emulator. These apps create a "virtual PC" inside your Android phone. Limbo PC Emulator windows 8 simulator apk for android