Cause: Corrupt Sony driver for the accelerometer or ambient light sensor. Fix:
Right-click This PC > Properties > check system type (32-bit or 64-bit). Most PCG-71316L models support 64-bit. sony vaio pcg-71316l drivers
This is the most critical driver for system stability. This model uses an AMD chipset. If these are missing, you may see "Unknown Device" in Device Manager. Cause: Corrupt Sony driver for the accelerometer or
