PSWindowsUpdate gets Acces Denied on Remote Machienes while Domain Admin - powershell

Question

I want to deploy Updates to Windows Servers in Our Domain.
To achieve this i want to use the Module "PSWindowsUpdate" Here is the Official Release.
I use this Module in combination with PSSessions and import it locally on all Servers outside of the default Module Path.
It should accept the updates and install them without rebooting. This Script is run using an Domain Administrator
After it Accepts the Updates it should start downloading where this happens: The Error of the Job
I started getting this error after the 2018 July Security Patch installed.
As I can't share all of the code because of Company reasons, here is the part that matters:
function invokeUpdate{
param(
$session
)
if($Script:My.Reboot.isChecked){
$job = Invoke-Command -Session $session -ScriptBlock {Import-Module "C:\Scripts\updateModule\$($Using:My.ModuleVersion)\PSWindowsUpdate"; get-windowsupdate -install -AcceptAll} -AsJob
}else {
$job = Invoke-Command -Session $session -ScriptBlock {Import-Module "C:\Scripts\updateModule\$($Using:My.ModuleVersion)\PSWindowsUpdate"; get-windowsupdate -install -ignoreReboot -AcceptAll} -AsJob
}
return $job
}
function initSession{
param(
$serverHostname
)
$ses = New-PSSession -Computername $serverHostname
if(!(Invoke-Command -Session $ses -ScriptBlock {Test-Path "C:\Scripts\updateModule\" })){
Copy-Item "$modpath\$($Script:My.ModuleVersion)" -Destination "C:\Scripts\updateModule\$($Script:My.ModuleVersion)" -ToSession $ses -Recurse
}
Invoke-Command -Session $ses -ScriptBlock {
if((Get-ChildItem -Path "C:\Scripts\updateModule\").count -gt 1){
Get-ChildItem | Where-Object Name -NotLike "$($Using:My.ModuleVersion)" | Remove-Item -Recurse -Force
}
}
return $ses
}
$sessions = [System.Collections.ArrayList]#()
$Script:My.ModuleVersion = "2.1.1.2"
foreach ( $server in $Script:My.ServerActive.Items){
$sessions.Add( (initSession -serverHostname $server) )
}
foreach ($ses in $sessions){
invokeUpdate -session $ses
}
$Script:My.ServerActive.Items :
contains a list of server fqdns
Any Ideas or Solutions would save me,
thanks!
Nik
Edit 1:
Here is the Error Message:
Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED))
+ CategoryInfo : NotSpecified: (:) [Get-WindowsUpdate], UnauthorizedAccessException
+ FullyQualifiedErrorId : System.UnauthorizedAccessException,PSWindowsUpdate.GetWindowsUpdate
+ PSComputerName : fs02.azubi.netz
This will break my Sessions, but the output is $true
([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator")
Invoke-Command : Cannot bind parameter 'Session'. Cannot convert value "True" to type "System.Management.Automation.Runspaces.PSSession". ...

Answer 1

To Fix This Problem I had to change the way of Copying to the other System and the Actual call of get-windowsupdate.
The Mooudle has to be in $env:PSModPath, so to fix it you have to copy into one of those folders.
Copy-Item "$modpath\$($Script:My.ModuleVersion)\" -Destination "$psmod\PSWindowsUpdate\$($Script:My.ModuleVersion)" -ToSession $ses -Recurse -ErrorAction Stop
the Update doesnt need to run Over Invoke Command.
Get-WindowsUpdate -AcceptAll -Install -IgnoreReboot -ComputerName $session.ComputerName
Hope this will Help if you get a similar Problem!