How to Remotely Shut Down or Restart Windows

Restart or Shut Down a Remote Computer and Document the ReasonApplies To: Windows 7, Windows Server 2008 R2
In order to use this feature, the Remote Registry service must be enabled on the remote computer. See Enable the Remote Registry Service for more information.
Access to the Remote Registry or membership in the Administrators group on the remote computer is the minimum required to complete this procedure.

• Using the Windows interface
• Using a command line

Using the Windows interface

1. To restart or shut down a remote computer and document the reason using the Windows interface
2. Click Start, click All Programs, click Accessories, and click Command Prompt.
3. Type shutdown /i to display the Remote Shutdown dialog box (Shutdown.exe).
4. Under Computers, click Add to enter computer names, or click Browse to open the Find Computers dialog box.
5. Under What do you want these computers to do, click Restart or Shut down.
6. Select the appropriate reason for the restart or shutdown from the list.
   If a comment is required, the OK button will not be available until you type at least one character in the text box.
   Additional considerations
   Another way to start Command Prompt is to click Start, click in the Search box, type cmd, and press ENTER.

The Remote Registry service must be enabled on the remote computer for Shutdown Event Tracker to record information.

To shut down or restart a remote computer, the Remote Administration and Windows Management Instrumentation firewall exceptions must be enabled on the remote computer.

Additional references

• Work with Shutdown Event Tracker
• Shutdown Event Tracker Overview
• Enable the Remote Registry Service

Using a command line
Membership in the Administrators group, or equivalent, on the remote computer is the minimum required to complete this procedure.
To restart or shut down a remote computer and document the reason using the command line
Click Start, click All Programs, click Accessories, and click Command Prompt.
Type shutdown /[r|s] /m \\ComputerName /c “Comment” /d [u|p] <xx>:<yy> and then press ENTER.

Reffed by:-https://technet.microsoft.com/en-us/library/cc770416(v=ws.11).aspx