Scheduled task failing when being deployed by GPO on some PC's

I have scheduled a Task Scheduler using GPO (Windows 2012 R2). it failed when triggered by Task Scheduler with below error.

The operator or administrator has refused the request(0x800710E0)

I have followed below steps also after Google search

1. Checked "Run whether user logged in or not"
2. Unchecked "Start the task only if the computer is on AC power"

the actual command is

Schtasks.exe /Create /SC DAILY /TN Shutdown /TR "C:\Windows\System32\shutdown.exe /s /t 0" /ST 21:00:00 /SD 01/01/2015 /RU SYSTEM /RL HIGHEST

There's no reason (at least not one that you've explained) to make a task (via GPP) that creates a task (via SchTasks).

So just define the Shutdown task directly in GPP. To do this, in the GPP policy:

• Set "Run" to shutdown.exe
• Set "Arguments" to /s /t 0