Configuring System Startup Delay

Configures a computer to wait 10 seconds (instead of the default 30 seconds) before automatically loading the default operating system upon startup.

strComputer = "."
Set objWMIService = GetObject("winmgmts:" _
    & "{impersonationLevel=impersonate}!\\" & strComputer & "\root\cimv2")
Set colStartupCommands = objWMIService.ExecQuery _
    ("Select * from Win32_ComputerSystem")
For Each objStartupCommand in colStartupCommands
    objStartupCommand.SystemStartupDelay = 10
    objStartupCommand.Put_
Next

This is a VB Script, this can be used by saving the file in .vbs file