PowerShell script to create a scheduled task that runs a choco upgrade all at machine startup

Schedule-ChocoUpgradeAll.ps1

# See if choco.exe is available. If not, stop execution
$chocoCmd = Get-Command -Name 'choco' -ErrorAction SilentlyContinue -WarningAction SilentlyContinue | Select-Object -ExpandProperty Source
if ($chocoCmd -eq $null) { break }

# Settings for the scheduled task
$taskAction = New-ScheduledTaskAction –Execute $chocoCmd -Argument 'upgrade all -y'
$taskTrigger = New-ScheduledTaskTrigger -AtStartup
$taskUserPrincipal = New-ScheduledTaskPrincipal -UserId 'SYSTEM'
$taskSettings = New-ScheduledTaskSettingsSet -Compatibility Win8

# Set up the task, and register it
$task = New-ScheduledTask -Action $taskAction -Principal $taskUserPrincipal -Trigger $taskTrigger -Settings $taskSettings
Register-ScheduledTask -TaskName 'Run a Choco Upgrade All at Startup' -InputObject $task -Force

Tried to change the trigger to daily at 3am.
$taskTrigger = New-ScheduledTaskTrigger -Daily -At 3am
This caused the following error: "New-ScheduledTaskTrigger : Method "NewTriggerByDaily" not found"

The error can be resolved by running the following command in PS:
mofcomp C:\Windows\System32\wbem\SchedProv.mof

Ref: https://powershell.org/forums/topic/method-newtriggerbyonce-not-found-taskscheduler/

I think this is very useful when setting up and installing a computer with Chocolatey. I made a simple package so it will be more accessible to all. Thanks for your work and feel free to request to be a maintainer!
https://chocolatey.org/packages/chocoupgradeallatstartup/2016.02.23

I wonder if it's possible to use the same automatic windows defined by Windows 8+ automatic update eg https://msdn.microsoft.com/en-us/library/windows/desktop/jj835985(v=vs.85).aspx ?

"You can convert any Task Scheduler task to a maintenance task. To do so, you must confirm that your application can be suspended. Then, you must extend the task definition with the new MaintenanceSettings and AllowStartOnDemand elements."

Would chocolatey exit cleanly if halted during an update? Or leave things half-upgraded..?