Adding Script automatically on Task Scheduler

Hi

I m new to scripting. I working on script to to add domain member to local Admin account and remove it automatically after a certain period of time. After referring posts online i could able to add or remove accounts from a machine. I don’t have programming skill and i stuck up with the step 3

Step are like

  1. Get Input

$DomainName = “xxxxx” #Read-Host -Prompt “Domain name:”
$ComputerName = Read-Host -Prompt “Computer name:”
$UserName = Read-Host -Prompt “User name:”

while(1){
Try{
$d = datetime
break
}
Catch{
Write-Host ‘Not a valid date’ -fore red
}
}

$AdminGroup = [ADSI]“WinNT://$ComputerName/Administrators,group”
$User = [ADSI]“WinNT://$DomainName/$UserName,user”

  1. Add the user account to local admin group

$AdminGroup.add($User.Path)

  1. Create a PS file on the local machine and update it with command to remove the account

Connect-PSSession -ComputerName $ComputerName
New-Item -ItemType “directory” -Path “\$ComputerName\c$\temp”
New-Item -ItemType “file” -Path “\$ComputerName\c$\temp\test.ps1”
Add-Content \$ComputerName\c$\temp\test.ps1 “$AdminGroup.remove($User.Path)”

  1. Add the created Script file on the Task Scheduler to run it automatically

$Trigger= New-ScheduledTaskTrigger -At $d.ToString(‘yyyy-MM-dd HH:mm:ss’)
$PSUser= “NT AUTHORITY\SYSTEM” # Specify the account to run the script
$Action= New-ScheduledTaskAction -Execute “PowerShell.exe” -Argument “C:\Temp\test.ps1”
Register-ScheduledTask -TaskName “Local Account removal” -Trigger $Trigger -User $PSUser -Action $Action -RunLevel Highest –Force

Exit-PSSession

The output at the step 3 was not as expect . the file it getting updated as

" System.DirectoryServices.DirectoryEntry.remove(System.DirectoryServices.DirectoryEntry.Path) "

Instead of Local admin group and the user account.

Could anyone please suggest me a solution to automated it with proper output. Or a different way to derive it ?

I m not sure how the step 4 will work

What do you mean by this?

3. Create a PS file on the local machine and update it with command to remove the account

Just create the script with the commands you need and copy it to the target to use it on and call it.