Prevent the fatal virus to enter your “Start or Shut down” pop up menu when you try to turn off your computer.
When you try to turn off your computer, the pop up menu unreasonable show “Restart update or Shut down update” that indicates your computer already had been poisoned. If you let update go, then your computer will be poisoned. Also, it is very hard to fix it. Only way you can use the “Norton Power Eraser” to remove the virus before the updating.
My suggestion is “Modify your Norton anti-virus software to prevent the virus to enter the computer system or can use ‘Quick Scan’ to remove the entered virus.”