Fixing the Packer-Error: Build 'virtualbox-iso' errored: Error uploading VirtualBox version: Error restoring file from $env:TEMP\winrmcp-8b907cad-02c8-493a-467a-bfadd3be596a.tmp to .vbox_version: restore operation returned code=16001

Author: jonashackt

step0-packer-windows-vagrantbox/windows_server_2016_docker.json

@@ -15,7 +15,7 @@
       "shutdown_command": "shutdown /s /t 10 /f /d p:4:1 /c \"Packer Shutdown\"",
       "post_shutdown_delay": "10s",
       "guest_os_type": "Windows2012_64",
-      "guest_additions_mode": "disable",
+      "guest_additions_mode": "attach",
       "disk_size": 61440,
       "floppy_files": [
         "./scripts/Autounattend.xml",