Shutdown (Power off) or Reboot a Remote Computer from Powershell

The Win32_OperatingSystem WMI class represents an operating system installed on a Windows computer system. The Win32_OperatingSystem class has a Win32Shutdown method. The Win32Shutdown method provides the full set of shutdown options supported by Win32 operating systems.

uint32 Win32Shutdown( sint32 Flags, sint32 Reserved );

Flags - Bitmapped set of flags to shut the computer down. To force a command, add the Force flag (4) to the command value. Using Force in conjunction with Shutdown or Reboot on a remote computer immediately shuts down everything (including WMI, COM, and so on), or reboots the remote computer. This results in an indeterminate return value.

  0 – Log Off
  
  4 – Forced Log Off
  
  1 – Shutdown
  
  5 – Forced Shutdown
  
  2 – Reboot
  
  6 – Forced Reboot
  
  8 – Power Off
  
  12 – Forced Power Off

Reserved - A means to extend Win32Shutdown. Currently, the Reserved parameter is ignored.

Returns zero (0) to indicate success. Any other number indicates an error.

(Get-WmiObject -Class Win32_OperatingSystem -ComputerName .).InvokeMethod("Win32Shutdown",0)

or use aliases

(gwmi Win32_OperatingSystem).Win32Shutdown(0)

(gwmi win32_operatingsystem -ComputerName MyServer).Win32Shutdown(0) 

Parameter -computername – the computer we want to connect to. If the -computername parameter is not present or “.” then the script will retrieve information from the local machine.

Run with different credentials:

(gwmi win32_operatingsystem -ComputerName MyServer -cred (get-credential)).Win32Shutdown(0) 

(gwmi win32_operatingsystem).Win32Shutdown(8)

(gwmi win32_operatingsystem).Win32Shutdown(12)

(gwmi win32_operatingsystem).Win32Shutdown(2)

(gwmi win32_operatingsystem).Win32Shutdown(6)

(gwmi win32_operatingsystem -ComputerName MyServer).Win32Shutdown(12) 

-computername MyServer. This, of course, is the name of the computer we are interested in.

Run with different credentials:

(gwmi win32_operatingsystem -ComputerName MyServer -cred (get-credential)).Win32Shutdown(12) 

(gwmi win32_operatingsystem -ComputerName MyServer).Win32Shutdown(6) 

Run with different credentials:

(gwmi win32_operatingsystem -ComputerName MyServer -cred (get-credential)).Win32Shutdown(6) 

• Remote Shutdown is tool for remote restart, shutdown, bulk restart, bulk shutdown
• Remote Process Explorer - manage processes on a remote computer in real time