diff --git a/FFUDevelopment/BuildFFUVM_UI.ps1 b/FFUDevelopment/BuildFFUVM_UI.ps1
index 4fd0b7c..03950df 100644
--- a/FFUDevelopment/BuildFFUVM_UI.ps1
+++ b/FFUDevelopment/BuildFFUVM_UI.ps1
@@ -167,9 +167,9 @@ $window.Add_Closed({
             }
         }
 
-        # Garbage collection
-        [System.GC]::Collect()
-        [System.GC]::WaitForPendingFinalizers()
+        # # Garbage collection
+        # [System.GC]::Collect()
+        # [System.GC]::WaitForPendingFinalizers()
     })
 
 [void]$window.ShowDialog()
diff --git a/FFUDevelopment/FFUUI.Core/FFUUI.Core.Drivers.Dell.psm1 b/FFUDevelopment/FFUUI.Core/FFUUI.Core.Drivers.Dell.psm1
index 55c68d8..8af929a 100644
--- a/FFUDevelopment/FFUUI.Core/FFUUI.Core.Drivers.Dell.psm1
+++ b/FFUDevelopment/FFUUI.Core/FFUUI.Core.Drivers.Dell.psm1
@@ -178,41 +178,10 @@ function Save-DellDriversTask {
     $modelPath = Join-Path -Path $makeDriversPath -ChildPath $modelName
 
     try {
-        # --- Dell Catalog Handling ---
+        # Define paths for Dell catalog. The catalog is assumed to be prepared by the calling function.
         $dellDriversFolder = Join-Path -Path $DriversFolder -ChildPath "Dell"
         $catalogBaseName = if ($WindowsRelease -le 11) { "CatalogPC" } else { "Catalog" }
-        $dellCabFile = Join-Path -Path $dellDriversFolder -ChildPath "$($catalogBaseName).cab"
         $dellCatalogXML = Join-Path -Path $dellDriversFolder -ChildPath "$($catalogBaseName).xml"
-        $catalogUrl = if ($WindowsRelease -le 11) { "http://downloads.dell.com/catalog/CatalogPC.cab" } else { "https://downloads.dell.com/catalog/Catalog.cab" }
-
-        $downloadCatalog = $true
-        if (Test-Path -Path $dellCatalogXML -PathType Leaf) {
-            if (((Get-Date) - (Get-Item $dellCatalogXML).LastWriteTime).TotalDays -lt 7) {
-                WriteLog "Using existing Dell Catalog XML (less than 7 days old): $dellCatalogXML"
-                $downloadCatalog = $false
-            }
-            else { WriteLog "Existing Dell Catalog XML is older than 7 days: $dellCatalogXML" }
-        }
-        else { WriteLog "Dell Catalog XML not found: $dellCatalogXML" }
-
-        if ($downloadCatalog) {
-            WriteLog "Downloading and extracting Dell Catalog for task..."
-            if (-not (Test-Path -Path $dellDriversFolder -PathType Container)) {
-                New-Item -Path $dellDriversFolder -ItemType Directory -Force | Out-Null
-            }
-            try {
-                $request = [System.Net.WebRequest]::Create($catalogUrl); $request.Method = 'HEAD'; $response = $request.GetResponse(); $response.Close()
-            }
-            catch { throw "Dell Catalog URL '$catalogUrl' not accessible: $($_.Exception.Message)" }
-
-            if (Test-Path -Path $dellCabFile) { Remove-Item -Path $dellCabFile -Force -ErrorAction SilentlyContinue }
-            if (Test-Path -Path $dellCatalogXML) { Remove-Item -Path $dellCatalogXML -Force -ErrorAction SilentlyContinue }
-
-            Start-BitsTransferWithRetry -Source $catalogUrl -Destination $dellCabFile
-            Invoke-Process -FilePath "Expand.exe" -ArgumentList """$dellCabFile"" ""$dellCatalogXML""" | Out-Null
-            Remove-Item -Path $dellCabFile -Force -ErrorAction SilentlyContinue
-        }
-        # --- End Dell Catalog Handling ---
 
         # 1. Check if drivers already exist for this model (final destination)
         if (Test-Path -Path $modelPath -PathType Container) {
@@ -567,7 +536,6 @@ function Save-DellDriversTask {
         # Ensure return object is created even on error
         return [PSCustomObject]@{ Model = $modelName; Status = $status; Success = $success }
     }
-    # REMOVED: Finally block that cleaned up temp catalog files
 
     # Enqueue the final status (success or error) before returning
     if ($null -ne $ProgressQueue) { Invoke-ProgressUpdate -ProgressQueue $ProgressQueue -Identifier $modelName -Status $status }
diff --git a/FFUDevelopment/FFUUI.Core/FFUUI.Core.Drivers.psm1 b/FFUDevelopment/FFUUI.Core/FFUUI.Core.Drivers.psm1
index 8329091..ddf0388 100644
--- a/FFUDevelopment/FFUUI.Core/FFUUI.Core.Drivers.psm1
+++ b/FFUDevelopment/FFUUI.Core/FFUUI.Core.Drivers.psm1
@@ -568,6 +568,52 @@ function Invoke-DownloadSelectedDrivers {
     $State.Controls.txtStatus.Text = "Processing all selected drivers..."
     WriteLog "Processing all selected drivers: $($selectedDrivers.Model -join ', ')"
 
+    # Pre-process Dell Catalog if needed, so it's not done in parallel
+    if ($selectedDrivers | Where-Object { $_.Make -eq 'Dell' }) {
+        WriteLog "Dell drivers selected. Ensuring Dell Catalog is up-to-date..."
+        try {
+            $dellDriversFolder = Join-Path -Path $localDriversFolder -ChildPath "Dell"
+            $catalogBaseName = if ($localWindowsRelease -le 11) { "CatalogPC" } else { "Catalog" }
+            $dellCabFile = Join-Path -Path $dellDriversFolder -ChildPath "$($catalogBaseName).cab"
+            $dellCatalogXML = Join-Path -Path $dellDriversFolder -ChildPath "$($catalogBaseName).xml"
+            $catalogUrl = if ($localWindowsRelease -le 11) { "http://downloads.dell.com/catalog/CatalogPC.cab" } else { "https://downloads.dell.com/catalog/Catalog.cab" }
+
+            $downloadCatalog = $true
+            if (Test-Path -Path $dellCatalogXML -PathType Leaf) {
+                if (((Get-Date) - (Get-Item $dellCatalogXML).CreationTime).TotalDays -lt 7) {
+                    WriteLog "Using existing Dell Catalog XML (less than 7 days old): $dellCatalogXML"
+                    $downloadCatalog = $false
+                }
+                else { WriteLog "Existing Dell Catalog XML is older than 7 days: $dellCatalogXML" }
+            }
+            else { WriteLog "Dell Catalog XML not found: $dellCatalogXML" }
+
+            if ($downloadCatalog) {
+                WriteLog "Downloading and extracting Dell Catalog for driver download process..."
+                if (-not (Test-Path -Path $dellDriversFolder -PathType Container)) {
+                    New-Item -Path $dellDriversFolder -ItemType Directory -Force | Out-Null
+                }
+                
+                if (Test-Path -Path $dellCabFile) { Remove-Item -Path $dellCabFile -Force -ErrorAction SilentlyContinue }
+                if (Test-Path -Path $dellCatalogXML) { Remove-Item -Path $dellCatalogXML -Force -ErrorAction SilentlyContinue }
+
+                Start-BitsTransferWithRetry -Source $catalogUrl -Destination $dellCabFile
+                Invoke-Process -FilePath "Expand.exe" -ArgumentList """$dellCabFile"" ""$dellCatalogXML""" | Out-Null
+                Remove-Item -Path $dellCabFile -Force -ErrorAction SilentlyContinue
+                WriteLog "Dell Catalog prepared successfully."
+            }
+        }
+        catch {
+            $errorMessage = "Failed to prepare Dell Catalog: $($_.Exception.Message)"
+            WriteLog $errorMessage
+            [System.Windows.MessageBox]::Show($errorMessage, "Dell Catalog Error", "OK", "Error")
+            $Button.IsEnabled = $true
+            $State.Controls.pbOverallProgress.Visibility = 'Collapsed'
+            $State.Controls.txtStatus.Text = "Driver download cancelled due to Dell Catalog error."
+            return
+        }
+    }
+
     $taskArguments = @{
         DriversFolder  = $localDriversFolder
         WindowsRelease = $localWindowsRelease