diff --git a/scripts/menu/KE/customize_menu_KE.sh b/scripts/menu/KE/customize_menu_KE.sh
index fbfa913..e924ede 100755
--- a/scripts/menu/KE/customize_menu_KE.sh
+++ b/scripts/menu/KE/customize_menu_KE.sh
@@ -44,6 +44,8 @@ function customize_menu_ke() {
       2)
         if [ -f "$CREALITY_WEB_FILE" ]; then
           error_msg "Creality Web Interface is already present!"
+        elif [ ! "$INITD_FOLDER"/S99start_app ]: then
+          error_msg "Guppy Screen need to be removed first to restore Creality Web Interface!"
         else
           run "restore_creality_web_interface" "customize_menu_ui_ke"
         fi;;
diff --git a/scripts/menu/customize_menu.sh b/scripts/menu/customize_menu.sh
index caee57c..cd90307 100755
--- a/scripts/menu/customize_menu.sh
+++ b/scripts/menu/customize_menu.sh
@@ -63,6 +63,8 @@ function customize_menu() {
       4)
         if [ -f "$CREALITY_WEB_FILE" ]; then
           error_msg "Creality Web Interface is already present!"
+        elif [ ! "$INITD_FOLDER"/S99start_app ]: then
+          error_msg "Guppy Screen need to be removed first to restore Creality Web Interface!"
         else
           run "restore_creality_web_interface" "customize_menu_ui"
         fi;;