Access Denied with -RunElevated

[Brett Wright]

Trying to run the below code in a non elevated powershell and get the following error message

$scriptblock = {get-process}
Invoke-CommandAs -ScriptBlock $scriptblock -RunElevated

Invoke-ScheduledTask : An access denied error occurred when registering scheduled job definition e44e0537-40c1-4a28-81ae-e56b4275aa69.  Try running Windows PowerShell with elevated user right
s; that is, Run As Administrator.
At C:\Program Files\WindowsPowerShell\Modules\Invoke-CommandAs\3.1.5\public\Invoke-CommandAs.ps1:399 char:17
+                 Invoke-ScheduledTask @Parameters
+                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [Write-Error], WriteErrorException
    + FullyQualifiedErrorId : Microsoft.PowerShell.Commands.WriteErrorException,Invoke-ScheduledTask

$PSVersionTable

Name                           Value                                                                                                                                                           
----                           -----                                                                                                                                                           
PSVersion                      5.1.17763.503                                                                                                                                                   
PSEdition                      Desktop                                                                                                                                                         
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}                                                                                                                                         
BuildVersion                   10.0.17763.503                                                                                                                                                  
CLRVersion                     4.0.30319.42000                                                                                                                                                 
WSManStackVersion              3.0                                                                                                                                                             
PSRemotingProtocolVersion      2.3                                                                                                                                                             
SerializationVersion           1.1.0.1  

Get-Module

ModuleType Version    Name                                ExportedCommands                                                                                                                     
---------- -------    ----                                ----------------                                                                                                                     
Script     3.1.5      Invoke-CommandAs                    Invoke-CommandAs                                                                                                                     
Script     1.0.0.0    ISE                                 {Get-IseSnippet, Import-IseSnippet, New-IseSnippet}                                                                                  
Manifest   3.1.0.0    Microsoft.PowerShell.Management     {Add-Computer, Add-Content, Checkpoint-Computer, Clear-Content...}                                                                   
Manifest   3.0.0.0    Microsoft.PowerShell.Security       {ConvertFrom-SecureString, ConvertTo-SecureString, Get-Acl, Get-AuthenticodeSignature...}                                            
Manifest   3.1.0.0    Microsoft.PowerShell.Utility        {Add-Member, Add-Type, Clear-Variable, Compare-Object...}                                                                            
Manifest   3.0.0.0    Microsoft.WSMan.Management          {Connect-WSMan, Disable-WSManCredSSP, Disconnect-WSMan, Enable-WSManCredSSP...}                                                      
Binary     1.1.0.0    PSScheduledJob                      {Add-JobTrigger, Disable-JobTrigger, Disable-ScheduledJob, Enable-JobTrigger...}                                                     
Manifest   1.0.0.0    ScheduledTasks                      {Disable-ScheduledTask, Enable-ScheduledTask, Export-ScheduledTask, Get-ClusteredScheduledTask...}                                   

[Marc R Kellerman]

Yeah, this is a ‘normal’ issue. To create a schedule task locally, you must run in an elevated powershell console to begin with.

Not sure how to circumvent this.

[Marc R Kellerman]

And this is not particularly related to -RunElevated.

[Marc R Kellerman]

You could self elevate your script:
http://www.expta.com/2017/03/how-to-self-elevate-powershell-script.html

Register-ScheduledTask requires a Elevated powershell session (Run As Administrator)