As a electronic device that is common that it appears problem suddenly. There are several customers asked that the TV Box show the message of " the win 10 system has not installed".
The engineer has checked that it is because that the power cut off suddenly when the Box has not finish the upload of the Win 10 when you turn on it for the first time. You can search the entire files on the internet then download and install it. If you do not know how to do it correctly, you can contact us with your order number. The detail information about this TV Box, you can look at here: https://www.pipo-store.com/buy-pipo-tablet.html