← Back to notes
POWERSHELLUpdated Jul 6, 2026 · 4 min read

Update a scheduled task that uses a gMSA

Modify an existing task action without knowing—or needing—the managed service account password.

#gmsa#task-scheduler#automation

Retrieve the existing task, replace only its action, and preserve the principal and trigger definitions.

$task = Get-ScheduledTask -TaskName 'Nightly Maintenance'
$action = New-ScheduledTaskAction `
  -Execute 'PowerShell.exe' `
  -Argument '-NoProfile -File C:\Ops\Nightly-Maintenance.ps1'

Set-ScheduledTask -InputObject $task -Action $action

Validation

Start-ScheduledTask -TaskName 'Nightly Maintenance'
Get-ScheduledTaskInfo -TaskName 'Nightly Maintenance'

[!WARNING] Do not recreate the task unless necessary. Doing so can silently replace the existing gMSA principal or security options.