Windows are opening and closing on the tablet randomly.

Symptoms:

Windows are opening and closing randomly as if someone was tapping on desktop or program icons. 

Cause:

It is possible that the touch screen is malfunctioning. A crack in the screen may be a good indicator. This happens whether or not GPS data is streaming into the tablet COM port (see Mouse pointer flickers across the screen randomly.)

Solutions:

Tablet repair may be required. Alternatively, disable touch input (via the Human Interface Devices section of the Windows Device Manager) and use a computer mouse for input.