Pipo X8 is a computer/tablet optimized to sit next to your TV.
It dual boots Windows (8 or 10) and Android (4.4).
In normal operation, when you boot the system it asks you to pick Windows or Android. But sometimes this can break.
On Android side, you should have a "Switch OS" button with the Windows icon under the drop-down status menu (slide down from top right).
On Windows side you may need to download the small app: WinToAnd.exe
http://chinagadgetsreviews.blogspot.com.ar/2015/06/download-wintoand-v103t.html