Windows 7 - "You don't have permission to Shutdown and Restart this Computer" Problem Solution

From the last two days many user-facing shutdown problems on their pc.

The common thing is all users are having Windows 7 Operating Systems.
Whenever they try to click on Shutdown or Restart button, then Windows showing error message contains "You don't have permission to Shutdown this PC".

Net Protector AntiVirus has a solution to this problem.

Install Net Protector AntiVirus to Solve this problem.