unable to change backgroud on devices via intune

[AB21805]

Hi all,

I am using: 

 $RegKeyPath = "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\PersonalizationCSP"

$DesktopPath = "DesktopImagePath"

$DesktopStatus = "DesktopImageStatus"

$DesktopUrl = "DesktopImageUrl"

$StatusValue = "1"

$url = "openlocationlinkhere.jpeg"

$DesktopImageValue = "C:\MDM\getinvolved.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 

But when I use this locally on a test machine before deploying it doesnt work and errors out / powershell window closes before I can check the error. 

Is this the best way of deploying backgrounds? or is there a more reliable way

[#2]

I've just this one in the past, bit more work but you can set the correct wallpaper for each type of screen

https://oliverkieselbach.com/2021/02/23/set-preference-for-a-suitable-wallpaper-with-intune/

[#3]

Hi,

Normally this script works... but we don't have any background information of the "test device"
Of course if you have the properlicensing you can set it up in Intune
https://365tips.be/en/setting-the-background-and-lock-screen-in-microsoft-endpoint-manager/

What happens when you deploy it intune? What happens when you open a powershell session first and copy paste the powershell script in parts... so you would get your error

[#4]

Hi both @Rudy_Ooms_MVP @Harm_Veenstra 

So seems like the script works but for some odd reason it doesn't like the URL I used for the image. this image opens fine when entering on a incognito browser

So I have got it working a long way but it works even though the script fails.on intune.

What I have done is push the image out via win32 app to go into the location c:\MDM then the script does the rest. Even though this works I think the script is failing due to it having code in it which I no longer need due to deploying the image through a win32 app.

Any ideas which bit i need to remove? so it says successful on intune rather than failed for the script

[#5]

If it does work, the wallpaper is actually set on the machine, then it could be that the script exits with a bad error code. You could try ending the script with "exit 0" ?

[#6]

You could try to convert it to a proactive remediations so you could get some "feedback" of what happened on the client. And I agree with harm, Exit codes are quit important :)
https://call4cloud.nl/2021/05/imecache-attack-of-the-cleaner/#part5

[#7]

@AB21805 

you're using the DownloadFile method of the System.Net.WebClient object. How about you just put that code in a script, enable debugging and review the $error variable for more insight?

#image URL
$URL = "https://image-url"
#image path
$imagePath = "c:\path-to-save-image"
$itr = 1 
while($itr -le 5)
{
write-host "Try number:$itr" -ForegroundColor green
try
{
Write-host "Getting image from $URL"
$webclient = new-object System.Net.WebClient
$webclient.DownloadFile($URL, $imagePath)
write-host "webClient transfer complete, breaking loop" -ForegroundColor green
break
}
catch
{
write-host "$($error[0].Exception.ToString())"
$itr += 1

if($itr -gt 5)
{
write-host "$($itr-1) failed tries exiting script" -foregroundColor red
exit 0
}
}
} #end while