diff --git a/source/ubl-settings-bootloader.cc b/source/ubl-settings-bootloader.cc
index 0a29560..29b5162 100644
--- a/source/ubl-settings-bootloader.cc
+++ b/source/ubl-settings-bootloader.cc
@@ -230,11 +230,13 @@ void MainWindow::item_selected_kernel(const Gtk::TreeModel::Path&, const Gtk::Tr
     treeViewOTT->get_selection()->unselect_all();
     treeViewUser->get_selection()->unselect_all();
     treeViewMelody->get_selection()->unselect_all();
-    if (flag_blocked_tree_view == false) { 
-        string str_flags = template_item_selected(size_kernel, list_store_kernel, "GRUB_CMDLINE_LINUX");
-        map_cmd_selection["GRUB_CMDLINE_LINUX"] = str_flags;
-        // Utils::str_replace_all(str_flags, " ", ", ");
-        entryKernel->set_text(str_flags);
+    if (flag_blocked_tree_view == false) {
+        if (this->intel_idle_cstate_check(size_kernel, list_store_kernel, "GRUB_CMDLINE_LINUX") == false) {
+            string str_flags = template_item_selected(size_kernel, list_store_kernel, "GRUB_CMDLINE_LINUX");
+            map_cmd_selection["GRUB_CMDLINE_LINUX"] = str_flags;
+            // Utils::str_replace_all(str_flags, " ", ", ");
+            entryKernel->set_text(str_flags);
+        }
     }
 }
 
@@ -244,10 +246,12 @@ void MainWindow::item_selected_OTT(const Gtk::TreeModel::Path&, const Gtk::TreeM
     treeViewUser->get_selection()->unselect_all();
     treeViewMelody->get_selection()->unselect_all();
     if (flag_blocked_tree_view == false) { 
-        string str_flags = template_item_selected(size_OTT, list_store_OTT, "GRUB_TERMINAL_OUTPUT");
-        map_cmd_selection["GRUB_TERMINAL_OUTPUT"] = str_flags;
-        // Utils::str_replace_all(str_flags, " ", ", ");
-        entryOTT->set_text(str_flags);
+        if (this->intel_idle_cstate_check(size_OTT, list_store_OTT, "GRUB_TERMINAL_OUTPUT") == false) {
+            string str_flags = template_item_selected(size_OTT, list_store_OTT, "GRUB_TERMINAL_OUTPUT");
+            map_cmd_selection["GRUB_TERMINAL_OUTPUT"] = str_flags;
+            // Utils::str_replace_all(str_flags, " ", ", ");
+            entryOTT->set_text(str_flags);
+        }
     }
 }
 
@@ -257,10 +261,12 @@ void MainWindow::item_selected_IPT(const Gtk::TreeModel::Path&, const Gtk::TreeM
     treeViewUser->get_selection()->unselect_all();
     treeViewMelody->get_selection()->unselect_all();
     if (flag_blocked_tree_view == false) {
-        string str_flags = template_item_selected(size_IPT, list_store_IPT, "GRUB_TERMINAL_INPUT");
-        map_cmd_selection["GRUB_TERMINAL_INPUT"] = str_flags;
-        // Utils::str_replace_all(str_flags, " ", ", ");
-        entryIPT->set_text(str_flags);
+        if (this->intel_idle_cstate_check(size_IPT, list_store_IPT, "GRUB_TERMINAL_INPUT") == false) {
+            string str_flags = template_item_selected(size_IPT, list_store_IPT, "GRUB_TERMINAL_INPUT");
+            map_cmd_selection["GRUB_TERMINAL_INPUT"] = str_flags;
+            // Utils::str_replace_all(str_flags, " ", ", ");
+            entryIPT->set_text(str_flags);
+        }
     }
 }
 
@@ -317,6 +323,44 @@ void MainWindow::set_download_mode() {
     map_cmd_selection["GRUB_BOOT_SILENT"] = key;
 }
 
+bool MainWindow::intel_idle_cstate_check(int size, Glib::RefPtr<Gtk::ListStore> &list_store, string key) {
+    string cmds_old = map_cmd_selection[key];
+    string cmds = "";
+    string param = "";
+    int index_1 = -1;
+    int index_4 = -1;
+    bool active = false;
+    for (int index = 0; index < size; index++) {    
+        Gtk::TreeModel::Row row = list_store->children()[index];
+        if(row) {
+            param = row[m_columns.name] + "";
+            active = row[m_columns.check_button];
+            if (param == "intel_idle.max_cstate=1" && active == true) {
+                index_1 = index;
+            }
+            else if (param == "intel_idle.max_cstate=4" && active == true) {
+                index_4 = index;
+            }
+        }
+    }
+    if (index_1 != -1 && index_4 != -1) {
+        if (cmds_old.find("intel_idle.max_cstate=1") == string::npos) {
+            Gtk::TreeModel::Row row = list_store->children()[index_4];
+            row[m_columns.check_button] = false;
+            return true;
+        }
+        else if (cmds_old.find("intel_idle.max_cstate=4") == string::npos) {
+            Gtk::TreeModel::Row row = list_store->children()[index_1];
+            row[m_columns.check_button] = false;
+            return true;
+        }
+        else {
+            return false;
+        }
+    }
+    return false;
+}
+
 string MainWindow::template_item_selected(int size, Glib::RefPtr<Gtk::ListStore> &list_store, string key) {
     string cmds_old = map_cmd_selection[key];
     string cmds = "";