Changed to new MGGraph commands.

Exchange/Set-Profile-Picture.ps1

@@ -0,0 +1,46 @@
+# Define the local path to your default profile picture
+$PicturePath = "C:\Temp\Profile_Picture.png"
+
+if (-not (Test-Path $PicturePath)) {
+    Write-Error "The specified picture file was not found at $PicturePath"
+    exit
+}
+
+# Connect to Microsoft Graph. You must have the Microsoft.Graph.Users module installed.
+# Scopes needed for modifying user photos.
+Connect-MgGraph -Scopes "User.ReadWrite.All"
+
+# Retrieve standard member accounts, ignoring service accounts or guests
+$Users = Get-MgUser -Filter "userType eq 'Member' and accountEnabled eq true" -All
+
+foreach ($User in $Users) {
+    $HasPhoto = $true
+    
+    try {
+        # Attempt to retrieve the user's photo. 
+        # If none exists, Graph throws an ImageNotFound exception.
+        $null = Get-MgUserPhoto -UserId $User.Id -ErrorAction Stop
+    }
+    catch {
+        $HasPhoto = $false
+    }
+
+    if (-not $HasPhoto) {
+        Write-Host "No profile picture found for $($User.UserPrincipalName). Applying default..." -ForegroundColor Cyan
+        
+        try {
+            # Set the photo using the local file
+            Set-MgUserPhotoContent -UserId $User.Id -InFile $PicturePath -ErrorAction Stop
+            Write-Host "Successfully applied picture to $($User.UserPrincipalName)." -ForegroundColor Green
+        }
+        catch {
+            Write-Host "Failed to apply picture to $($User.UserPrincipalName). Error: $($_.Exception.Message)" -ForegroundColor Red
+        }
+    }
+    else {
+        Write-Host "Profile picture already exists for $($User.UserPrincipalName). Skipping." -ForegroundColor DarkGray
+    }
+}
+
+# Always sever the session.
+Disconnect-MgGraph