📎 AI Summary:
The thread is about modifying a Windows PowerShell post-setup script (for an NTLite deployment) that currently downloads a wallpaper from a URL, so it can instead use a locally available image file. The key question/answer is to remove the `Invoke-WebRequest` download step and set the wallpaper directly using a full local path that the deployment places/copies onto the target system. Overall sentiment is practical and instructional, with the response guiding toward the simplest way to switch from remote to local wallpaper usage.
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Pcgamer27

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Thread Author #1
I have a problem I have a script that only uses the URL to change the wallpaper but I have this locally. How can I do this? for NTlite software

# Define the URL for the wallpaper
$url = 'https://images.alphacoders.com/137/1377548.png'
$outputPath = "$env:TEMP\wallpaper.png"

try {
# Download the wallpaper
Invoke-WebRequest -Uri $url -UseBasicParsing -TimeoutSec 30 -OutFile $outputPath

# Function to set wallpaper
function Set-Wallpaper {
param (
[string]$ImagePath
)
Add-Type @"
using System;
using System.Runtime.InteropServices;
using Microsoft.Win32;
public class Wallpaper {
[DllImport("user32.dll", CharSet = CharSet.Auto)]
private static extern int SystemParametersInfo(int uAction, int uParam, string lpvParam, int fWinIni);
public static void Set(string path) {
Registry.SetValue(@"HKEY_CURRENT_USER\Control Panel\Desktop", "WallpaperStyle", "2"); // Center
Registry.SetValue(@"HKEY_CURRENT_USER\Control Panel\Desktop", "TileWallpaper", "0");
SystemParametersInfo(20, 0, path, 3);
}
}
"@
[Wallpaper]::Set($ImagePath)
}

# Set the downloaded image as wallpaper
Set-Wallpaper -ImagePath $outputPath

# Clean up
Remove-Item $outputPath -ErrorAction SilentlyContinue

exit 0
}
catch {
Write-Error "Failed to download or set wallpaper: $_"
exit 1
 

Solution
WindowsForum AI
To set a local image as the wallpaper in your NTlite post-setup script, just skip the Invoke-WebRequest part, and point directly to your local file (wherever you place it during deployment).
Modify your script as follows:

For a Local Wallpaper Image​

Suppose your image is copied to C:\NTLite\Assets\wallpaper.png during deployment:
Code: 
# Path to your local wallpaper file
$ImagePath = "C:\NTLite\Assets\wallpaper.png" # <-- Use your real local path! # Function to set wallpaper
function Set-Wallpaper { param ( [string]$ImagePath) Add-Type @"
using System;
using System.Runtime.InteropServices;
using Microsoft.Win32;
public class Wallpaper {
[DllImport("user32.dll", CharSet = CharSet.Auto)]
private static...
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WindowsForum AI

WindowsForum AI

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#2
To set a local image as the wallpaper in your NTlite post-setup script, just skip the Invoke-WebRequest part, and point directly to your local file (wherever you place it during deployment).
Modify your script as follows:

For a Local Wallpaper Image​

Suppose your image is copied to C:\NTLite\Assets\wallpaper.png during deployment:
Code: 
# Path to your local wallpaper file
$ImagePath = "C:\NTLite\Assets\wallpaper.png" # <-- Use your real local path! # Function to set wallpaper
function Set-Wallpaper { param ( [string]$ImagePath) Add-Type @"
using System;
using System.Runtime.InteropServices;
using Microsoft.Win32;
public class Wallpaper {
[DllImport("user32.dll", CharSet = CharSet.Auto)]
private static extern int SystemParametersInfo(int uAction, int uParam, string lpvParam, int fWinIni);
public static void Set(string path) {
Registry.SetValue(@"HKEY_CURRENT_USER\Control Panel\Desktop", "WallpaperStyle", "2"); // Center
Registry.SetValue(@"HKEY_CURRENT_USER\Control Panel\Desktop", "TileWallpaper", "0");
SystemParametersInfo(20, 0, path, 3);
}
}
"@ } # Set the local image as wallpaper
Set-Wallpaper -ImagePath $ImagePath exit 0

Summary of Steps:​

  • Do NOT use Invoke-WebRequest—just leave out the download step.
  • Place/copy your PNG/JPG/BMP into the target system folder during NTlite deployment.
  • Reference its full path in $ImagePath when calling your function.

If you want the script to work for any local file, just ask the user to set $ImagePath to their own local file​

Example for your NTlite post-setup:
Code: 
$ImagePath = "C:\CustomAssets\wallpaper.png" # Change to your actual file # ...The rest as above
Set-Wallpaper -ImagePath $ImagePath
exit 0
No need for web URLs if you have a local image! If you need the NTlite XML post-setup block or how to copy the image as part of deployment, just let me know your workflow and I'll script that too!
 

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