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powershelltaskschedulerwindows-task-scheduler

Powershell script to schedule daily task error

I have a very simple power shell script that will register console applications as daily scheduled tasks.

$TaskCommand = Read-Host 'Enter the path to the console application'
$TaskName = "TaskName"
$TaskStartTime = "10PM"
$TaskArg = "-WindowStyle Hidden -NonInteractive -Executionpolicy unrestricted"

$TaskAction = New-ScheduledTaskAction -Execute "$TaskCommand" -Argument "$TaskArg"
$TaskTrigger = New-ScheduledTaskTrigger -At $TaskStartTime -Daily
Register-ScheduledTask -Action $TaskAction -Trigger $TaskTrigger -TaskName "$TaskName" -User %computername%\theusername -Password "password" -RunLevel Highest

The application reads the file path from user input and attempts to register the application as a task using a specific user account. I can get the script working by using

-User "System"

However when I try to use the above script I get this error:

Register-ScheduledTask: No mapping between account names and security IDs was done.

I have ensured that the account exists as it is currently running several services. I am also new to powershell so have tried adding quotations around the username with no luck.

Solution

  • Don't think PowerShell recognises %computername%. Have a look at environment variables here.

    $env:USERNAME, $env:USERDOMAIN $env:COMPUTERNAME look relevant to your task.