diff --git a/activity_4/toolbox.xml b/activity_4/toolbox.xml
index 93f0e7651f8d1934760538d25d65ab5e51d7bfe9..a479e45c7eddc6cc3c4610ef2be5f954d1ddc4fd 100644
--- a/activity_4/toolbox.xml
+++ b/activity_4/toolbox.xml
@@ -3,18 +3,6 @@
     <block type="setup_camera_module"></block>
     <block type="activate_camera"></block>
     <block type="open_hatch"></block>
-    <block type="turn_io">
-      <value name="IO">
-        <shadow type="math_number">
-          <field name="NUM">4</field>
-        </shadow>
-      </value>
-      <value name="VAL">
-        <shadow type="math_number">
-          <field name="NUM">1</field>
-        </shadow>
-      </value>
-    </block>
     <block type="activate_moon_signal"></block>
   </category>
   <category name="Partie 2">
diff --git a/res/img/activity_4/desktop.ini b/res/img/activity_4/desktop.ini
new file mode 100644
index 0000000000000000000000000000000000000000..995bb2e84cfd5df6cfd67a0151684a5b03615531
--- /dev/null
+++ b/res/img/activity_4/desktop.ini
@@ -0,0 +1,5 @@
+[.ShellClassInfo]
+InfoTip=Ce dossier est partagé en ligne.
+IconFile=C:\Program Files\Google\Drive\googledrivesync.exe
+IconIndex=16
+    
\ No newline at end of file