Hi,

like system startup it is not possible to execute a script at system shutdown with the task scheduler. It must be configured with a group policy. You can choose the GUI way are set it by script:

Let us assume the Script is C:\scripts\shutdownEv.cmd.

Adjust the following template, replace Scriptname 2 times, and add the keys to the registry by saving it as file shutdown.reg…

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Group Policy\Scripts\Shutdown]

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Group Policy\Scripts\Shutdown\0]
"GPO-ID"="LocalGPO"
"SOM-ID"="Local"
"FileSysPath"="C:\\Windows\\System32\\GroupPolicy\\Machine"
"DisplayName"="Local Group Policy"
"GPOName"="Local Group Policy"
"PSScriptOrder"=dword:00000001

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Group Policy\Scripts\Shutdown\0\0]
"Script"="c:\\Scripts\\shutdownEv.cmd"
"Parameters"=""
"IsPowershell"=dword:00000000
"ExecTime"=hex(b):00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Group Policy\State\Machine\Scripts\Shutdown]

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Group Policy\State\Machine\Scripts\Shutdown\0]
"GPO-ID"="LocalGPO"
"SOM-ID"="Local"
"FileSysPath"="C:\\Windows\\System32\\GroupPolicy\\Machine"
"DisplayName"="Local Group Policy"
"GPOName"="Local Group Policy"
"PSScriptOrder"=dword:00000001

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Group Policy\State\Machine\Scripts\Shutdown\0\0]
"Script"="c:\\Scripts\\shutdownEv.cmd"
"Parameters"=""
"ExecTime"=hex(b):00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00

…. Ensure that there is not another GPO at HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Group Policy\Scripts\Shutdown\0: configured. Then you have to use 1 or 2…. The shutdown key only exists if scripts are already configured.

reg query "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Group Policy\Scripts\Shutdown"
ERROR: The system was unable to find the specified registry key or value.

Ok, no scripts are in place. Add the registry keys:

regedit /u shutdown.reg

Also a ini File “C:\Windows\System32\GroupPolicy\Machine\Scripts\scripts.ini” is requiered. And like the registry keys. Check the connect of the file if there are already scripts defined.

[Shutdown]
0CmdLine=c:\Scripts\shutdownEv.cmd
0Parameters=

Same procedure for a powershell script. The Registry File shutdownps.reg

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Group Policy\Scripts\Shutdown]

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Group Policy\Scripts\Shutdown\0]
"GPO-ID"="LocalGPO"
"SOM-ID"="Local"
"FileSysPath"="C:\\Windows\\System32\\GroupPolicy\\Machine"
"DisplayName"="Local Group Policy"
"GPOName"="Local Group Policy"
"PSScriptOrder"=dword:00000001

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Group Policy\Scripts\Shutdown\0\0]
"Script"="c:\\Scripts\\shutdownEV.ps1"
"Parameters"=""
"IsPowershell"=dword:00000001
"ExecTime"=hex(b):00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Group Policy\State\Machine\Scripts\Shutdown]

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Group Policy\State\Machine\Scripts\Shutdown\0]
"GPO-ID"="LocalGPO"
"SOM-ID"="Local"
"FileSysPath"="C:\\Windows\\System32\\GroupPolicy\\Machine"
"DisplayName"="Local Group Policy"
"GPOName"="Local Group Policy"
"PSScriptOrder"=dword:00000001

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Group Policy\State\Machine\Scripts\Shutdown\0\0]
"Script"="c:\\Scripts\\shutdownEV.ps1"
"Parameters"=""
"ExecTime"=hex(b):00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00

and the corresponding ini file “C:\Windows\System32\GroupPolicy\Machine\Scripts\psscripts.ini”

[Shutdown]
0CmdLine=c:\Scripts\shutdownEV.ps1
0Parameters=

Note: The ini file is not necessary for executing the script at shutdown. It is required that the policy is also shown by the Group Policy Object Editor.

Michael