PowerShell script to create a Registry key with logging not working - Stack Overflow

Hi all I am having some issues, and I am a beginner. I wrote a script that creates a registry value with logging.
It gets stuck on -Type DWORD.

I know the registry is a virtual drive, and check using Get-PSDrive.

Can you advise what I am doing wrong? Thanks

This is the error message:

Mode                 LastWriteTime         Length Name                                                                                                                                               
----                 -------------         ------ ----                                                                                                                                               
-a----          1/6/2025   6:59 PM              0 System                                                                                                                                             
Registry key created: HKLM\Software\Microsoft\Windows\CurrentVersion\policies\System
Error: A parameter cannot be found that matches parameter name 'PropertyType'.
Script completed.

Here is the script:

# Define the directory path and log file name
$directoryPath = "C:\setup"
$logFileName = "install_registry_log.txt"
$logFilePath = Join-Path -Path $directoryPath -ChildPath $logFileName

# Check if the directory exists, if not, create it
if (-not (Test-Path -Path $directoryPath)) {
    New-Item -Path $directoryPath -ItemType Directory
    Write-Host "Directory created at: $directoryPath"
} else {
    Write-Host "Directory already exists: $directoryPath"
}

# Create or append to the log file
if (-not (Test-Path -Path $logFilePath)) {
    # Create the log file and add a header
    New-Item -Path $logFilePath -ItemType File -Force
    Add-Content -Path $logFilePath -Value "Log started at: $(Get-Date)"
    Write-Host "Log file created: $logFilePath"
} else {
    Write-Host "Log file already exists: $logFilePath"
}

# Define the registry key and value to be set
$registryPath = "HKLM\Software\Microsoft\Windows\CurrentVersion\policies\System"
$registryValueName = "DoNotDisplayLastUserName"
# $registryValueData = "1"



# Install registry key settings
try {
    # Check if the registry key exists
    if (-not (Test-Path -Path $registryPath)) {
        # Create the registry key if it doesn't exist
        New-Item -Path $registryPath -Force
        Add-Content -Path $logFilePath -Value "Registry key created: $registryPath at $(Get-Date)"
        Write-Host "Registry key created: $registryPath"
    }

    # Set the registry value
    Set-ItemProperty -Path $registryPath -Name $registryValueName -Value $registryValueData -Type DWORD -Force
    Add-Content -Path $logFilePath -Value "Registry value set: $registryPath\$registryValueName = $registryValueData at $(Get-Date)"
    Write-Host "Registry value set: $registryPath\$registryValueName = $registryValueData"

} catch {
    # Log any errors
    Add-Content -Path $logFilePath -Value "Error: $_ at $(Get-Date)"
    Write-Host "Error: $_"
}

# Optionally, log the completion of the script
Add-Content -Path $logFilePath -Value "Script completed at: $(Get-Date)"
Write-Host "Script completed."