Powershell - Lock screen & Desktop background issue

Some time ago I received the same question... This script worked perfectly for him (running as 64 bits and as system (Run this script using the logged on credentials --> no)


$RegKeyPath = "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\PersonalizationCSP"
$DesktopPath = "DesktopImagePath"
$DesktopStatus = "DesktopImageStatus"
$DesktopUrl = "DesktopImageUrl"
$StatusValue = "1"
$url = "https://call4cloud.nl/wp-content/uploads/2020/03/cropped-nieuw.jpg"
$DesktopImageValue = "C:\MDM\wallpaper.jpg"
$directory = "C:\MDM\"
If ((Test-Path -Path $directory) -eq $false)
{
New-Item -Path $directory -ItemType directory
}

$wc = New-Object System.Net.WebClient
$wc.DownloadFile($url, $DesktopImageValue)
if (!(Test-Path $RegKeyPath))
{
Write-Host "Creating registry path $($RegKeyPath)."
New-Item -Path $RegKeyPath -Force | Out-Null
}
New-ItemProperty -Path $RegKeyPath -Name $DesktopStatus -Value $Statusvalue -PropertyType DWORD -Force | Out-Null
New-ItemProperty -Path $RegKeyPath -Name $DesktopPath -Value $DesktopImageValue -PropertyType STRING -Force | Out-Null
New-ItemProperty -Path $RegKeyPath -Name $DesktopUrl -Value $DesktopImageValue -PropertyType STRING -Force | Out-Null