diff --git a/gui/ksysguard.cpp b/gui/ksysguard.cpp
--- a/gui/ksysguard.cpp
+++ b/gui/ksysguard.cpp
@@ -63,6 +63,7 @@
 #include <KSharedConfig>
 #include <KStandardAction>
 #include <KToggleAction>
+#include <KToggleShowMenuBarAction>
 #include <KUserTimestamp>
 #include <KWindowSystem>
 
@@ -145,23 +146,14 @@
   mConfigureSheetAction->setIcon( QIcon::fromTheme(QStringLiteral("configure")) );
   connect(mConfigureSheetAction, &QAction::triggered, this, &TopLevel::configureCurrentSheet);
   // set up 'Settings' menu
-  mShowMenuBarAction = KStandardAction::showMenubar(this, &TopLevel::toggleShowMenuBar, actionCollection());
+  mShowMenuBarAction = KStandardAction::showMenubar(this, &TopLevel::toggleShowMenuBar, this, actionCollection());
 
   retranslateUi();
 }
 
 void TopLevel::toggleShowMenuBar()
 {
-  if (mShowMenuBarAction->isChecked()) {
-    menuBar()->show();
-  } else {
-    const QString accel = mShowMenuBarAction->shortcut().toString();
-    KMessageBox::information(this, i18n("This will hide the menu bar completely."
-                                        " You can show it again by typing %1.", accel),
-                             i18n("Hide menu bar"),
-                             QStringLiteral("HideMenuBarWarning"));
-    menuBar()->hide();
-  }
+  menuBar()->setVisible(mShowMenuBarAction->isChecked());
 }
 
 void TopLevel::setLocalProcessController(ProcessController * localProcessController)
@@ -417,6 +409,12 @@
 //  if ( cfg.readEntry( "isMinimized" , false) == true )
 //    showMinimized();
 
+  QString menuBar = cfg.readEntry( "MenuBar", QString("Enabled"));
+  if (menuBar == "Disabled") {
+    mShowMenuBarAction->setChecked(false);
+  }
+  static_cast< KToggleShowMenuBarAction * >(mShowMenuBarAction)->setShowMessage(true);
+
   mSplitterSize = cfg.readEntry( "SplitterSizeList",QList<int>() );
   if ( mSplitterSize.isEmpty() ) {
     // start with a 30/70 ratio