Chosen Solution

The screen only shows half a display. it looks like a virus

Priscilla Archer this is usually caused by a bad LCD not a virus. You could try a reset by turning off the tablet fully (ensure that you battery is charged) Hold down the volume up and power button together for about 12-15 seconds until the first android logo comes up. When this happens, release both buttons. If that does not resolve it, consider replacing the display.