Template using hyperv-vmcx builder

template-step-2.json

{
  "builders": [
    {
      "type": "hyperv-vmcx",
      "clone_from_vmcx_path": "C:\\Users\\yooak\\source\\Basefarm\\packer-templates\\output-base\\Virtual Machines\\983A3EDE-0624-4A5C-A0BE-91FA050F68A5.vmcx",
      "output_directory": "./output-updates/",
      "communicator": "winrm",
      "winrm_username": "vagrant",
      "winrm_password": "vagrant",
      "winrm_timeout": "12h",
      "shutdown_command": "shutdown /s /t 10 /f /d p:4:1 /c \"Packer Shutdown\"",
      "shutdown_timeout": "1h",
      "ram_size": 4096,
      "cpu": 2,
      "switch_name": "Default Switch",
      "floppy_files": [
        "answer_files/2016/Autounattend.xml",
        "./scripts/bootstrap.ps1",
        "./scripts/unattend.xml"
      ]
    }
  ],
  "provisioners": [
    {
      "type": "powershell",
      "elevated_user": "vagrant",
      "elevated_password": "vagrant",
      "inline": [
        "Get-WUInstall -MicrosoftUpdate -AcceptAll -IgnoreReboot"
      ]
    },
    {
      "type": "windows-restart",
      "restart_timeout": "1h"
    }
  ]
}