Hello, I am currently testing the uninstall of my application. I am trying to delete a scheduled task that was created during the install of the application using appdeploytoolkit. When I use the powershell command on the local system it deletes the scheduled task as expected. When I add this powershell script into the Main Uninstallation section of deploy-application.ps1 it doesn’t delete the scheduled task.
Get-ScheduledTask -TaskName "*MyTask*" |Unregister-ScheduledTask -Confirm:$false
´´´Are you sure the task exists at that point in the script?
Maybe do some checking?
If ($ff=Get-ScheduledTask -TaskName “MyTask”) {Write-Log -Message “$($ff)”}
Hey,
i use a simple extention function
#region Function Manage-ScheduledTask
Function Manage-ScheduledTask {
<#
.SYNOPSIS
.PARAMETER TaskName (Task name)
.PARAMETER Action (What to do with schedule task: 'Add','Delete','Query')
.PARAMETER XmlPath (Full path to XML file)
.PARAMETER DeleteExisting (If schedule task already exist, delte before set new task. Default: $false)
.PARAMETER ContinueOnError (Continue if an error is encountered. Default: $true)
.EXAMPLE
Manage-ScheduledTask -Action "Add" -TaskName "OneDrive" -XmlPath "$dirFiles\OneDrive.xml" -DeleteExisting $true
Manage-ScheduledTask -Action "Delete" -TaskName "OneDrive" -ContinueOnError $false
Manage-ScheduledTask -Action "Query" -TaskName "OneDrive" -ContinueOnError $false
.NOTES
#>
[cmdletbinding()]
Param (
[parameter(Mandatory=$true)]
[ValidateNotNullOrEmpty()]
[string]$TaskName,
[ValidateSet('Add','Delete','Query')]
[string]$Action,
[Parameter(Mandatory=$false)]
[string]$XmlPath = $null,
[boolean]$DeleteExisting = $false,
[boolean]$ContinueOnError = $true
)
Begin {
## Get the name of this function and write header
[string]${CmdletName} = $PSCmdlet.MyInvocation.MyCommand.Name
Write-FunctionHeaderOrFooter -CmdletName ${CmdletName} -CmdletBoundParameters $PSBoundParameters -Header
$ErrorActionPreference = "Stop"
[string]$Parameter = ""
[int32]$returnCode = 70015
}
Process {
Write-Log -Message "Try to manage scheduled task." -Source ${CmdletName}
If (!(Test-Path -Path $exeSchTasks -PathType Leaf)) {
Write-Log -Message "Schedule task executable [$exeSchTasks] not found." -Severity 3 -Source ${CmdletName}
If (-not $ContinueOnError) {
Exit-Script -ExitCode $returnCode
}
Return $false
}
## Help function to run commands
Function SchedTask-Execute {
Try {
Write-Log -Message "Executing [$exeSchTasks $Parameter]..." -Source ${CmdletName}
$Process = Start-Process -FilePath $exeSchTasks -ArgumentList $Parameter -PassThru -WindowStyle Hidden
Wait-Process -InputObject $Process
If ($Process.ExitCode -eq 0) {
Write-Log -Message "Execution completed successfully with exit code [$($Process.ExitCode)]." -Source ${CmdletName}
Start-Sleep -Seconds 3
} Else {
Throw "Execution failed with exit code [$($Process.ExitCode)]."
}
} Catch {
Write-Log -Message $_.Exception.Message -Severity 3 -Source ${CmdletName}
If (-not $ContinueOnError) {
Exit-Script -ExitCode $returnCode
}
}
}
## End help fuctions
$GetScheduledTask = $null
$GetScheduledTask = Get-SchedulerTask -TaskName "$($TaskName)" -ContinueOnError $false
If ($GetScheduledTask) {
$CleanTaskName = $GetScheduledTask.TaskName
If ($CleanTaskName.StartsWith("\")) {
$CleanTaskName = $CleanTaskName.TrimStart("\")
}
If ($CleanTaskName -like "$($TaskName)") {
Write-Log -Message "Schedule task [$($CleanTaskName)] exist, task state is [$($GetScheduledTask.Status)]." -Source ${CmdletName}
$TaskExist = $true
} Else {
Write-Log -Message "Schedule task [$($CleanTaskName)] doesn't exist." -Source ${CmdletName}
$TaskExist = $false
}
} Else {
Write-Log -Message "Schedule task [$($TaskName)] doesn't exist." -Source ${CmdletName}
$TaskExist = $false
}
Switch ($Action) {
"Add" {
If ($DeleteExisting -and $TaskExist) {
Write-Log -Message "Delete existing scheduled task [$($CleanTaskName)`]." -Source ${CmdletName}
[string]$Parameter = "/Delete /TN `"$($CleanTaskName)`" /F"
SchedTask-Execute
}
Write-Log -Message "Add schedule task [$($TaskName)]." -Source ${CmdletName}
[string]$Parameter = "/Create /XML `"$($XmlPath)`" /TN `"$($TaskName)`" /F"
SchedTask-Execute
Break
}
"Delete" {
If ($TaskExist) {
Write-Log -Message "Delete schedule task [$($TaskName)]." -Source ${CmdletName}
$Parameter = "/Delete /TN `"$($TaskName)`" /F"
SchedTask-Execute
}
Break
}
"Query" {
Return $GetScheduledTask
Break
}
}
}
End {
Write-FunctionHeaderOrFooter -CmdletName ${CmdletName} -Footer
}
}
#endregion
Thanks for the replies. This is my first application I am deploying with SCCM using appdeploytoolkit. I have 3 collections: install available, install required, uninstall
When I add a computer to the uninstall collection it successfully removes folders but doesn’t delete the scheduled task. I have included the section of code in deploy-application.ps1.
#*====================================PRE-UNINSTALLATION END==================================================================
#endregion PRE-UNINSTALLATION
#region MAIN-UNINSTALLATION
[string]$installPhase = 'Uninstallation'
#*====================================MAIN-UNINSTALLATION BEGIN===============================================================
# user dialogs (deprecated)
if ($Company_UseDialogs){
## Only use for longer installations (Installation duration approx. >3 minutes)
#Show-InstallationProgress -WindowLocation 'BottomRight'
}
Get-ScheduledTask -TaskName "*MyTask*" |Unregister-ScheduledTask -Confirm:$false
If (Test-Path -Path "$envProgramData\Company\DeleteProfiles"){
Remove-Folder -Path "$envProgramData\Company\DeleteProfiles"
}
#*====================================MAIN-UNINSTALLATION END==================================================================
#endregion MAIN-UNINSTALLATION
#region POST-UNINSTALLATION
[string]$installPhase = 'Post-Uninstallation'
#*====================================POST-UNINSTALLATION BEGIN===============================================================
# application entry
Remove-ApplicationWizardEntry
##Branding Uninstall
Remove-Branding
##Handling for required reboot
#Set-Reboot
#*====================================POST-UNINSTALLATION END=================================================================
#endregion POST-UNINSTALLATION
#endregion UNINSTALLATION
You are not logging anything by piping it.
At a minimum, you should break it up:
$MyTask = Get-ScheduledTask -TaskName "*MyTask*"
If ($null -ne $MyTask ) {
$MyTask | Unregister-ScheduledTask -Confirm:$false
} Else {
write-log "[*MyTask*] was not found."
}
If you want to try to log more, you can look here:
Logging for non-PSADT commands - The Toolkit / Tips & Tricks - PSAppDeployToolkit Community
@That-Annoying-Guy Thanks for the note. I tried the suggested script and it deleted every scheduled task on the computer. I was hoping to only delete the task named MyTask.
Sorry about that.
I updated one line in my previous post.
I forgot to use the $MyTask variable with Unregister-ScheduledTask cmdlet.
Not a problem at all. I am happy someone was willing to help!
The task is unregistered according to the log. What I can’t figure out is why it still shows in the Task Scheduler GUI. Also when I look in c:\Windows\System32\Tasks there is still a folder there named MyTask. When I try to delete it i am given an error that the file cannot be found.
I used my admin account to create the task and admin account to unregister the account. It is very strange.
Maybe the task you want to delete is in a folder and the Unregister-ScheduledTask cmdlet sees that the task doesn’t exist and takes credit for a job well done.
Maybe try to remove your task without PSADT involved.
Yes, you are correct. I tried earlier to run the command just from powershell and it worked beautifully. The task “MyTask” is located at the root level, maybe this is the problem when using appdeploytoolkit? I have exhausted my knowledge. 