diff --git a/install-AdHoc-Backup-GUI.ps1 b/install-AdHoc-Backup-GUI.ps1
index ac7368d..b529384 100644
--- a/install-AdHoc-Backup-GUI.ps1
+++ b/install-AdHoc-Backup-GUI.ps1
@@ -1,14 +1,10 @@
 #Requires -Version 5.1
 <#
-Installer AdHoc Backup (GUI) - v1.3.4
-- Tab "Configurazione (backup.conf)" con UI dinamica (checkbox per booleani, textbox per altri valori)
-- Struttura:   C:\polo\scripts\bin\RClone\   C:\polo\scripts\bin\7Zip\   C:\polo\scripts\bin\conf\
-- Config:      C:\polo\scripts\bin\conf\backup.conf   e   C:\polo\scripts\bin\conf\rclone.conf
-- "Installa":  scarica/installa Rclone e **solo 7zr.exe** (nessun alias 7z.exe) nelle cartelle bin\
-- Dopo estrazione elimina ZIP di Rclone
-- Avvio "Configura rclone" con Start-Process diretto (no cmd.exe)
-- Schedulazione giornaliera/settimanale via schtasks; AdHoc-Backup.ps1 avviato con -Config <bin\conf\backup.conf>
-- Chiusura di tutte le console aperte dall’installer alla chiusura della finestra
+Installer AdHoc Backup (GUI) - v1.3.5
+- Fix: editing nel tab Config -> niente più "indice null" (usa $sender.Tag per mappare il key)
+- Solo 7zr.exe (nessun alias 7z.exe) in C:\polo\scripts\bin\7Zip\
+- Rclone auto, pulizia ZIP, layout bin/conf
+- Schedulazione via schtasks, chiusura console figlie
 #>
 
 Add-Type -AssemblyName System.Windows.Forms
@@ -146,7 +142,7 @@ $global:ChildPids = New-Object System.Collections.ArrayList
 function Track-Child($p){ if ($p -and $p.Id) { [void]$global:ChildPids.Add($p.Id) } }
 
 $global:ConfUi = @{
-    Map         = $null
+    Map         = [ordered]@{}
     Order       = @()
     Controls    = @{}
     SourceLines = @()
@@ -174,6 +170,7 @@ function Parse-BackupConf {
 }
 
 function Save-BackupConf { param([Parameter(Mandatory)][string]$Path)
+    if (-not $global:ConfUi.Map) { throw "Mappa configurazione non inizializzata." }
     $out = New-Object System.Collections.Generic.List[string]
     foreach ($entry in $global:ConfUi.Order){
         if ($entry.type -eq 'kv'){
@@ -261,18 +258,36 @@ function Build-ConfigUI {
     $cfgPanel.Controls.Clear(); $global:ConfUi.Controls = @{}
     $xLabel=10; $xCtrl=260; $y=10; $h=24
     foreach ($k in $global:ConfUi.Map.Keys) {
-        $v = $global:ConfUi.Map[$k]
-        $lbl = New-Object System.Windows.Forms.Label; $lbl.Text=$k; Set-Loc $lbl $xLabel ($y+4); Set-Sz $lbl 240 $h; $cfgPanel.Controls.Add($lbl)
+        $key = [string]$k  # copia locale e forte tipizzazione
+        $v = $global:ConfUi.Map[$key]
+        $lbl = New-Object System.Windows.Forms.Label; $lbl.Text=$key; $lbl.Tag=$key; Set-Loc $lbl $xLabel ($y+4); Set-Sz $lbl 240 $h; $cfgPanel.Controls.Add($lbl)
         if (Is-BoolString $v) {
             $chk = New-Object System.Windows.Forms.CheckBox
+            $chk.Tag = $key
             $chk.Checked = (('1','true','yes','y') -contains ($v.ToString().ToLower()))
             Set-Loc $chk $xCtrl ($y+2); Set-Sz $chk 20 $h
-            $chk.Add_CheckedChanged({ $global:ConfUi.Map[$k] = if ($chk.Checked) { 'true' } else { 'false' } })
-            $cfgPanel.Controls.Add($chk); $global:ConfUi.Controls[$k]=$chk
+            $chk.add_CheckedChanged({ param($sender,$args)
+                try {
+                    $k2 = [string]$sender.Tag
+                    if (-not [string]::IsNullOrEmpty($k2)) {
+                        $global:ConfUi.Map[$k2] = if ($sender.Checked) { 'true' } else { 'false' }
+                    }
+                } catch { Write-Log "Update booleano fallito: $($_.Exception.Message)" 'WARN' }
+            })
+            $cfgPanel.Controls.Add($chk); $global:ConfUi.Controls[$key]=$chk
         } else {
-            $tb = New-Object System.Windows.Forms.TextBox; $tb.Text=$v; Set-Loc $tb $xCtrl $y; Set-Sz $tb 540 $h
-            $tb.Add_TextChanged({ $global:ConfUi.Map[$k] = $tb.Text })
-            $cfgPanel.Controls.Add($tb); $global:ConfUi.Controls[$k]=$tb
+            $tb = New-Object System.Windows.Forms.TextBox
+            $tb.Tag = $key
+            $tb.Text=$v; Set-Loc $tb $xCtrl $y; Set-Sz $tb 540 $h
+            $tb.add_TextChanged({ param($sender,$args)
+                try {
+                    $k2 = [string]$sender.Tag
+                    if (-not [string]::IsNullOrEmpty($k2)) {
+                        $global:ConfUi.Map[$k2] = $sender.Text
+                    }
+                } catch { Write-Log "Update testo fallito: $($_.Exception.Message)" 'WARN' }
+            })
+            $cfgPanel.Controls.Add($tb); $global:ConfUi.Controls[$key]=$tb
         }
         $y += 28
     }