Introduces an option to retain downloaded ESD files

Adds a new configuration parameter and UI toggle to control whether downloaded Windows ESD files are removed after application. Updates the download process to check for and reuse existing ESD files that match the latest metadata filename, saving bandwidth and time on subsequent executions. Integrates the conditional deletion logic into the shared cleanup module.

FFUDevelopment/FFUUI.Core/FFUUI.Core.Config.psm1

@@ -82,6 +82,7 @@ function Get-UIConfig {
         RemoveApps                     = $State.Controls.chkRemoveApps.IsChecked
         RemoveFFU                      = $State.Controls.chkRemoveFFU.IsChecked
         RemoveUpdates                  = $State.Controls.chkRemoveUpdates.IsChecked
+        RemoveDownloadedESD            = $State.Controls.chkRemoveDownloadedESD.IsChecked
         ShareName                      = $State.Controls.txtShareName.Text
         UpdateADK                      = $State.Controls.chkUpdateADK.IsChecked
         UpdateEdge                     = $State.Controls.chkUpdateEdge.IsChecked
@@ -461,6 +462,7 @@ function Update-UIFromConfig {
     Set-UIValue -ControlName 'chkRemoveFFU' -PropertyName 'IsChecked' -ConfigObject $ConfigContent -ConfigKey 'RemoveFFU' -State $State
     Set-UIValue -ControlName 'chkRemoveApps' -PropertyName 'IsChecked' -ConfigObject $ConfigContent -ConfigKey 'RemoveApps' -State $State
     Set-UIValue -ControlName 'chkRemoveUpdates' -PropertyName 'IsChecked' -ConfigObject $ConfigContent -ConfigKey 'RemoveUpdates' -State $State
+    Set-UIValue -ControlName 'chkRemoveDownloadedESD' -PropertyName 'IsChecked' -ConfigObject $ConfigContent -ConfigKey 'RemoveDownloadedESD' -State $State
 
     # Hyper-V Settings
     Select-VMSwitchFromConfig -State $State -ConfigContent $ConfigContent
@@ -908,7 +910,8 @@ function Invoke-RestoreDefaults {
             -RemoveDrivers:$true `
             -RemoveFFU:$true `
             -RemoveApps:$true `
-            -RemoveUpdates:$true
+            -RemoveUpdates:$true `
+            -RemoveDownloadedESD:$true
 
         # Clear UI lists / state
         if ($null -ne $State.Data.allDriverModels) { $State.Data.allDriverModels.Clear() }

FFUDevelopment/FFUUI.Core/FFUUI.Core.Initialize.psm1

@@ -135,6 +135,7 @@ function Initialize-UIControls {
     $State.Controls.chkCleanupDeployISO = $window.FindName('chkCleanupDeployISO')
     $State.Controls.chkCleanupDrivers = $window.FindName('chkCleanupDrivers')
     $State.Controls.chkRemoveFFU = $window.FindName('chkRemoveFFU')
+    $State.Controls.chkRemoveDownloadedESD = $window.FindName('chkRemoveDownloadedESD')
     $State.Controls.txtDiskSize = $window.FindName('txtDiskSize')
     $State.Controls.txtMemory = $window.FindName('txtMemory')
     $State.Controls.txtProcessors = $window.FindName('txtProcessors')
@@ -258,6 +259,7 @@ function Initialize-UIDefaults {
     $State.Controls.chkRemoveFFU.IsChecked = $State.Defaults.generalDefaults.RemoveFFU
     $State.Controls.chkRemoveApps.IsChecked = $State.Defaults.generalDefaults.RemoveApps
     $State.Controls.chkRemoveUpdates.IsChecked = $State.Defaults.generalDefaults.RemoveUpdates
+    $State.Controls.chkRemoveDownloadedESD.IsChecked = $State.Defaults.generalDefaults.RemoveDownloadedESD
     $State.Controls.chkVerbose.IsChecked = $State.Defaults.generalDefaults.Verbose
     $State.Controls.usbSection.Visibility = if ($State.Controls.chkBuildUSBDriveEnable.IsChecked) { 'Visible' } else { 'Collapsed' }
     $State.Controls.usbSelectionPanel.Visibility = if ($State.Controls.chkSelectSpecificUSBDrives.IsChecked) { 'Visible' } else { 'Collapsed' }

FFUDevelopment/FFUUI.Core/FFUUI.Core.psm1

@@ -141,6 +141,7 @@ function Get-GeneralDefaults {
         RemoveFFU                      = $false
         RemoveApps                     = $false 
         RemoveUpdates                  = $false 
+        RemoveDownloadedESD            = $true
         # Hyper-V Settings Defaults
         VMHostIPAddress                = ""
         DiskSizeGB                     = 50