diff --git a/sources/gui/src/errorwindow.cpp b/sources/gui/src/errorwindow.cpp
index a5ce3b3..dea2186 100644
--- a/sources/gui/src/errorwindow.cpp
+++ b/sources/gui/src/errorwindow.cpp
@@ -16,88 +16,194 @@
  ***************************************************************************/
 
 #include "errorwindow.h"
-#include "ui_errorwindow.h"
 
+#include <QApplication>
+#include <QGridLayout>
+#include <QSpacerItem>
 #include <QDebug>
 
 
-ErrorWindow::ErrorWindow(QWidget *parent, const bool debugCmd, const int messageNumber)
-    : QMainWindow(parent),
-      debug(debugCmd),
-      ui(new Ui::ErrorWindow)
+ErrorWindow::ErrorWindow(QWidget *parent, const bool debugCmd)
+    : debug(debugCmd)
 {
-    if (debug) qDebug() << "[ErrorWindow]" << "[ErrorWindow]" << ":" << "Initializate with error code" << messageNumber;
-
-    ui->setupUi(this);
-    setMessage(messageNumber);
 }
 
+
 ErrorWindow::~ErrorWindow()
 {
     if (debug) qDebug() << "[ErrorWindow]" << "[~ErrorWindow]";
-
-    delete ui;
 }
 
-void ErrorWindow::setMessage(const int mess)
-{
-    if (debug) qDebug() << "[ErrorWindow]" << "[setMessage]";
-    if (debug) qDebug() << "[ErrorWindow]" << "[setMessage]" << ":" << "Message" << mess;
 
-    QString message;
+QStringList ErrorWindow::getMessage(const int mess)
+{
+    if (debug) qDebug() << "[ErrorWindow]" << "[getMessage]";
+    if (debug) qDebug() << "[ErrorWindow]" << "[getMessage]" << ":" << "Message" << mess;
+
+    QString message, title;
     switch(mess) {
     case 1:
+        title = QApplication::translate("ErrorWindow", "Error!");
         message = QApplication::translate("ErrorWindow", "Could not find components");
         break;
     case 2:
+        title = QApplication::translate("ErrorWindow", "Error!");
         message = QApplication::translate("ErrorWindow", "Does not support yet");
         break;
     case 3:
+        title = QApplication::translate("ErrorWindow", "Error!");
         message = QApplication::translate("ErrorWindow", "Profile name is not set");
         break;
     case 4:
+        title = QApplication::translate("ErrorWindow", "Error!");
         message = QApplication::translate("ErrorWindow", "Bind interfaces are not set");
         break;
     case 5:
+        title = QApplication::translate("ErrorWindow", "Error!");
         message = QApplication::translate("ErrorWindow", "Description is not set");
         break;
     case 6:
+        title = QApplication::translate("ErrorWindow", "Error!");
         message = QApplication::translate("ErrorWindow", "Ip settings are not set");
         break;
     case 7:
+        title = QApplication::translate("ErrorWindow", "Error!");
         message = QApplication::translate("ErrorWindow", "Configuration file does not exist");
         break;
     case 8:
+        title = QApplication::translate("ErrorWindow", "Error!");
         message = QApplication::translate("ErrorWindow", "Key is not set");
         break;
     case 9:
+        title = QApplication::translate("ErrorWindow", "Error!");
         message = QApplication::translate("ErrorWindow", "Wireless settings are not set");
         break;
     case 10:
+        title = QApplication::translate("ErrorWindow", "Error!");
         message = QApplication::translate("ErrorWindow", "Configuration file is not set");
         break;
     case 11:
+        title = QApplication::translate("ErrorWindow", "Error!");
         message = QApplication::translate("ErrorWindow", "ESSID is not set");
         break;
     case 12:
+        title = QApplication::translate("ErrorWindow", "Error!");
         message = QApplication::translate("ErrorWindow", "MAC address is incorrect");
         break;
     case 13:
+        title = QApplication::translate("ErrorWindow", "Error!");
         message = QApplication::translate("ErrorWindow", "Session ID is not set");
         break;
     case 14:
+        title = QApplication::translate("ErrorWindow", "Error!");
         message = QApplication::translate("ErrorWindow", "APN is not set");
         break;
     case 15:
+        title = QApplication::translate("ErrorWindow", "Error!");
         message = QApplication::translate("ErrorWindow", "APN is not set");
         break;
     case 16:
+        title = QApplication::translate("ErrorWindow", "Error!");
         message = QApplication::translate("ErrorWindow", "Empty user/group name");
         break;
     default:
+        title = QApplication::translate("ErrorWindow", "Error!");
         message = QApplication::translate("ErrorWindow", "Unknown error");
         break;
     }
 
-    ui->label->setText(message);
+    QStringList fullMessage;
+    fullMessage.append(title);
+    fullMessage.append(message);
+    return fullMessage;
+}
+
+
+QMessageBox::Icon ErrorWindow::getIcon(const int mess)
+{
+    if (debug) qDebug() << "[ErrorWindow]" << "[getIcon]";
+    if (debug) qDebug() << "[ErrorWindow]" << "[getIcon]" << ":" << "Message" << mess;
+
+    QMessageBox::Icon icon;
+    switch(mess) {
+    case 1:
+        icon = QMessageBox::Critical;
+        break;
+    case 2:
+        icon = QMessageBox::Critical;
+        break;
+    case 3:
+        icon = QMessageBox::Critical;
+        break;
+    case 4:
+        icon = QMessageBox::Critical;
+        break;
+    case 5:
+        icon = QMessageBox::Critical;
+        break;
+    case 6:
+        icon = QMessageBox::Critical;
+        break;
+    case 7:
+        icon = QMessageBox::Critical;
+        break;
+    case 8:
+        icon = QMessageBox::Critical;
+        break;
+    case 9:
+        icon = QMessageBox::Critical;
+        break;
+    case 10:
+        icon = QMessageBox::Critical;
+        break;
+    case 11:
+        icon = QMessageBox::Critical;
+        break;
+    case 12:
+        icon = QMessageBox::Critical;
+        break;
+    case 13:
+        icon = QMessageBox::Critical;
+        break;
+    case 14:
+        icon = QMessageBox::Critical;
+        break;
+    case 15:
+        icon = QMessageBox::Critical;
+        break;
+    case 16:
+        icon = QMessageBox::Critical;
+        break;
+    default:
+        icon = QMessageBox::NoIcon;
+        break;
+    }
+
+    return icon;
+}
+
+
+void ErrorWindow::showWindow(const int mess, const QString sender)
+{
+    if (debug) qDebug() << "[ErrorWindow]" << "[showWindow]";
+    if (debug) qDebug() << "[ErrorWindow]" << "[showWindow]" << ":" << "Message" << mess;
+    if (debug) qDebug() << "[ErrorWindow]" << "[showWindow]" << ":" << "Sender" << sender;
+
+    QStringList message = getMessage(mess);
+    QMessageBox messageBox;
+    messageBox.setText(message[0]);
+    messageBox.setInformativeText(message[1]);
+    if (debug)
+        messageBox.setDetailedText(QApplication::translate("ErrorWindow", "Sender : %1").
+                                   arg(sender));
+    messageBox.setIcon(getIcon(mess));
+    messageBox.setStandardButtons(QMessageBox::Ok);
+    messageBox.setDefaultButton(QMessageBox::Ok);
+
+    QSpacerItem *horizontalSpacer = new QSpacerItem(400, 0, QSizePolicy::Minimum, QSizePolicy::Expanding);
+    QGridLayout *layout = (QGridLayout *)messageBox.layout();
+    layout->addItem(horizontalSpacer, layout->rowCount(), 0, 1, layout->columnCount());
+
+    messageBox.exec();
+    return;
 }
diff --git a/sources/gui/src/errorwindow.h b/sources/gui/src/errorwindow.h
index b5f8387..c1bbcab 100644
--- a/sources/gui/src/errorwindow.h
+++ b/sources/gui/src/errorwindow.h
@@ -18,27 +18,28 @@
 #ifndef ERRORWINDOW_H
 #define ERRORWINDOW_H
 
-#include <QMainWindow>
+#include <QMessageBox>
+#include <QObject>
 
 
-namespace Ui {
-class ErrorWindow;
-}
-
-class ErrorWindow : public QMainWindow
+class ErrorWindow : public QObject
 {
     Q_OBJECT
 
 public:
     explicit ErrorWindow(QWidget *parent = 0,
-                         const bool debugCmd = false,
-                         const int messageNumber = 0);
+                         const bool debugCmd = false);
     ~ErrorWindow();
 
+public slots:
+    void showWindow(const int mess = 0,
+                    const QString sender = QString());
+
 private:
     bool debug;
-    Ui::ErrorWindow *ui;
-    void setMessage(const int mess);
+    QStringList getMessage(const int mess);
+    QMessageBox::Icon getIcon(const int mess);
 };
 
+
 #endif /* ERRORWINDOW_H */
diff --git a/sources/gui/src/mainwindow.cpp b/sources/gui/src/mainwindow.cpp
index 6d0d863..eea7095 100644
--- a/sources/gui/src/mainwindow.cpp
+++ b/sources/gui/src/mainwindow.cpp
@@ -75,8 +75,11 @@ MainWindow::MainWindow(QWidget *parent,
     configuration = settingsWin->getSettings();
 
     // gui
+    // windows
     aboutWin = new AboutWindow(this, debug);
+    errorWin = new ErrorWindow(this, debug);
     netctlAutoWin = new NetctlAutoWindow(this, debug, configuration);
+    // profile widgets
     generalWid = new GeneralWidget(this, configuration);
     ui->scrollAreaWidgetContents->layout()->addWidget(generalWid);
     ipWid = new IpWidget(this);
@@ -145,6 +148,7 @@ MainWindow::~MainWindow()
     delete wirelessWid;
 
     delete aboutWin;
+    delete errorWin;
     delete netctlAutoWin;
     delete settingsWin;
     delete ui;
@@ -314,6 +318,7 @@ void MainWindow::updateTabs(const int tab)
         updateProfileTab();
     else if (tab == 2)
         updateWifiTab();
+    updateMenu(tab);
 }
 
 
@@ -336,11 +341,8 @@ void MainWindow::updateMenu(const int tab)
 void MainWindow::updateMainTab()
 {
     if (debug) qDebug() << "[MainWindow]" << "[updateMainTab]";
-    if (!checkExternalApps(QString("netctl"))) {
-        errorWin = new ErrorWindow(this, debug, 1);
-        errorWin->show();
-        return;
-    }
+    if (!checkExternalApps(QString("netctl")))
+        return errorWin->showWindow(1, QString("[MainWindow] : [updateMainTab]"));
 
     ui->tabWidget->setDisabled(true);
     QList<QStringList> profiles = netctlCommand->getProfileList();
@@ -454,11 +456,8 @@ void MainWindow::updateWifiTab()
 {
     if (debug) qDebug() << "[MainWindow]" << "[updateWifiTab]";
     wifiTabSetEnabled(checkExternalApps(QString("wpasup")));
-    if (!checkExternalApps(QString("wpasup"))) {
-        errorWin = new ErrorWindow(this, debug, 1);
-        errorWin->show();
-        return;
-    }
+    if (!checkExternalApps(QString("wpasup")))
+        return errorWin->showWindow(1, QString("[MainWindow] : [updateWifiTab]"));
 
     QList<QStringList> scanResults = wpaCommand->scanWifi();
 
@@ -633,11 +632,8 @@ void MainWindow::mainTabRemoveProfile()
 void MainWindow::mainTabEnableProfile()
 {
     if (debug) qDebug() << "[MainWindow]" << "[mainTabEnableProfile]";
-    if (!checkExternalApps(QString("netctl"))) {
-        errorWin = new ErrorWindow(this, debug, 1);
-        errorWin->show();
-        return;
-    }
+    if (!checkExternalApps(QString("netctl")))
+        return errorWin->showWindow(1, QString("[MainWindow] : [mainTabEnableProfile]"));
     if (ui->tableWidget_main->currentItem() == 0)
         return;
 
@@ -665,11 +661,8 @@ void MainWindow::mainTabEnableProfile()
 void MainWindow::mainTabRestartProfile()
 {
     if (debug) qDebug() << "[MainWindow]" << "[mainTabRestartProfile]";
-    if (!checkExternalApps(QString("netctl"))) {
-        errorWin = new ErrorWindow(this, debug, 1);
-        errorWin->show();
-        return;
-    }
+    if (!checkExternalApps(QString("netctl")))
+        return errorWin->showWindow(1, QString("[MainWindow] : [mainTabRestartProfile]"));
     if (ui->tableWidget_main->currentItem() == 0)
         return;
 
@@ -688,11 +681,8 @@ void MainWindow::mainTabRestartProfile()
 void MainWindow::mainTabStartProfile()
 {
     if (debug) qDebug() << "[MainWindow]" << "[mainTabStartProfile]";
-    if (!checkExternalApps(QString("netctl"))) {
-        errorWin = new ErrorWindow(this, debug, 1);
-        errorWin->show();
-        return;
-    }
+    if (!checkExternalApps(QString("netctl")))
+        return errorWin->showWindow(1, QString("[MainWindow] : [mainTabStartProfile]"));
     if (ui->tableWidget_main->currentItem() == 0)
         return;
 
@@ -721,11 +711,8 @@ void MainWindow::mainTabRefreshButtons(QTableWidgetItem *current, QTableWidgetIt
 {
     Q_UNUSED(previous);
     if (debug) qDebug() << "[MainWindow]" << "[mainTabRefreshButtons]";
-    if (!checkExternalApps(QString("netctl"))) {
-        errorWin = new ErrorWindow(this, debug, 1);
-        errorWin->show();
-        return;
-    }
+    if (!checkExternalApps(QString("netctl")))
+        return errorWin->showWindow(1, QString("[MainWindow] : [mainTabRefreshButtons]"));
     if (current == 0) {
         ui->pushButton_mainRestart->setDisabled(true);
         ui->pushButton_mainStart->setDisabled(true);
@@ -919,21 +906,12 @@ void MainWindow::profileTabCreateProfile()
     if (debug) qDebug() << "[MainWindow]" << "[profileTabCreateProfile]";
 
     // error checking
-    if (ui->comboBox_profile->currentText().isEmpty()) {
-        errorWin = new ErrorWindow(this, debug, 3);
-        errorWin->show();
-        return;
-    }
-    if (generalWid->isOk() == 1) {
-        errorWin = new ErrorWindow(this, debug, 4);
-        errorWin->show();
-        return;
-    }
-    else if (generalWid->isOk() == 2) {
-        errorWin = new ErrorWindow(this, debug, 5);
-        errorWin->show();
-        return;
-    }
+    if (ui->comboBox_profile->currentText().isEmpty())
+        return errorWin->showWindow(3, QString("[MainWindow] : [profileTabCreateProfile]"));
+    if (generalWid->isOk() == 1)
+        return errorWin->showWindow(4, QString("[MainWindow] : [profileTabCreateProfile]"));
+    else if (generalWid->isOk() == 2)
+        return errorWin->showWindow(5, QString("[MainWindow] : [profileTabCreateProfile]"));
     if ((generalWid->connectionType->currentText() == QString("ethernet")) ||
             (generalWid->connectionType->currentText() == QString("wireless")) ||
             (generalWid->connectionType->currentText() == QString("bond")) ||
@@ -943,114 +921,60 @@ void MainWindow::profileTabCreateProfile()
             (generalWid->connectionType->currentText() == QString("tuntap")) ||
             (generalWid->connectionType->currentText() == QString("vlan")) ||
             (generalWid->connectionType->currentText() == QString("macvlan"))) {
-        if (ipWid->isOk() == 1) {
-            errorWin = new ErrorWindow(this, debug, 6);
-            errorWin->show();
-            return;
-        }
-        else if (ipWid->isOk() == 2) {
-            errorWin = new ErrorWindow(this, debug, 6);
-            errorWin->show();
-            return;
-        }
+        if (ipWid->isOk() == 1)
+            return errorWin->showWindow(6, QString("[MainWindow] : [profileTabCreateProfile]"));
+        else if (ipWid->isOk() == 2)
+            return errorWin->showWindow(6, QString("[MainWindow] : [profileTabCreateProfile]"));
     }
     if (generalWid->connectionType->currentText() == QString("ethernet")) {
-        if (ethernetWid->isOk() == 1) {
-            errorWin = new ErrorWindow(this, debug, 7);
-            errorWin->show();
-            return;
-        }
+        if (ethernetWid->isOk() == 1)
+            return errorWin->showWindow(7, QString("[MainWindow] : [profileTabCreateProfile]"));
     }
     else if (generalWid->connectionType->currentText() == QString("wireless")) {
-        if (wirelessWid->isOk() == 1) {
-            errorWin = new ErrorWindow(this, debug, 8);
-            errorWin->show();
-            return;
-        }
-        else if (wirelessWid->isOk() == 2) {
-            errorWin = new ErrorWindow(this, debug, 9);
-            errorWin->show();
-            return;
-        }
-        else if (wirelessWid->isOk() == 3) {
-            errorWin = new ErrorWindow(this, debug, 10);
-            errorWin->show();
-            return;
-        }
-        else if (wirelessWid->isOk() == 4) {
-            errorWin = new ErrorWindow(this, debug, 7);
-            errorWin->show();
-            return;
-        }
-        else if (wirelessWid->isOk() == 5) {
-            errorWin = new ErrorWindow(this, debug, 11);
-            errorWin->show();
-            return;
-        }
+        if (wirelessWid->isOk() == 1)
+            return errorWin->showWindow(8, QString("[MainWindow] : [profileTabCreateProfile]"));
+        else if (wirelessWid->isOk() == 2)
+            return errorWin->showWindow(9, QString("[MainWindow] : [profileTabCreateProfile]"));
+        else if (wirelessWid->isOk() == 3)
+            return errorWin->showWindow(10, QString("[MainWindow] : [profileTabCreateProfile]"));
+        else if (wirelessWid->isOk() == 4)
+            return errorWin->showWindow(7, QString("[MainWindow] : [profileTabCreateProfile]"));
+        else if (wirelessWid->isOk() == 5)
+            return errorWin->showWindow(11, QString("[MainWindow] : [profileTabCreateProfile]"));
     }
     else if (generalWid->connectionType->currentText() == QString("bridge")) {
     }
     else if (generalWid->connectionType->currentText() == QString("pppoe")) {
-        if (pppoeWid->isOk() == 1) {
-            errorWin = new ErrorWindow(this, debug, 7);
-            errorWin->show();
-            return;
-        }
-        else if (pppoeWid->isOk() == 2) {
-            errorWin = new ErrorWindow(this, debug, 12);
-            errorWin->show();
-            return;
-        }
-        else if (pppoeWid->isOk() == 3) {
-            errorWin = new ErrorWindow(this, debug, 13);
-            errorWin->show();
-            return;
-        }
-        else if (pppoeWid->isOk() == 4) {
-            errorWin = new ErrorWindow(this, debug, 12);
-            errorWin->show();
-            return;
-        }
+        if (pppoeWid->isOk() == 1)
+            return errorWin->showWindow(7, QString("[MainWindow] : [profileTabCreateProfile]"));
+        else if (pppoeWid->isOk() == 2)
+            return errorWin->showWindow(12, QString("[MainWindow] : [profileTabCreateProfile]"));
+        else if (pppoeWid->isOk() == 3)
+            return errorWin->showWindow(13, QString("[MainWindow] : [profileTabCreateProfile]"));
+        else if (pppoeWid->isOk() == 4)
+            return errorWin->showWindow(12, QString("[MainWindow] : [profileTabCreateProfile]"));
     }
     else if (generalWid->connectionType->currentText() == QString("mobile_ppp")) {
-        if (mobileWid->isOk() == 1) {
-            errorWin = new ErrorWindow(this, debug, 14);
-            errorWin->show();
-            return;
-        }
-        if (mobileWid->isOk() == 2) {
-            errorWin = new ErrorWindow(this, debug, 7);
-            errorWin->show();
-            return;
-        }
+        if (mobileWid->isOk() == 1)
+            return errorWin->showWindow(14, QString("[MainWindow] : [profileTabCreateProfile]"));
+        if (mobileWid->isOk() == 2)
+            return errorWin->showWindow(7, QString("[MainWindow] : [profileTabCreateProfile]"));
     }
     else if (generalWid->connectionType->currentText() == QString("tunnel")) {
     }
     else if (generalWid->connectionType->currentText() == QString("tuntap")) {
-        if (tuntapWid->isOk() == 1) {
-            errorWin = new ErrorWindow(this, debug, 15);
-            errorWin->show();
-            return;
-        }
-        if (tuntapWid->isOk() == 2) {
-            errorWin = new ErrorWindow(this, debug, 15);
-            errorWin->show();
-            return;
-        }
+        if (tuntapWid->isOk() == 1)
+            return errorWin->showWindow(15, QString("[MainWindow] : [profileTabCreateProfile]"));
+        if (tuntapWid->isOk() == 2)
+            return errorWin->showWindow(15, QString("[MainWindow] : [profileTabCreateProfile]"));
     }
     else if (generalWid->connectionType->currentText() == QString("vlan")) {
-        if (ethernetWid->isOk() == 1) {
-            errorWin = new ErrorWindow(this, debug, 7);
-            errorWin->show();
-            return;
-        }
+        if (ethernetWid->isOk() == 1)
+            return errorWin->showWindow(7, QString("[MainWindow] : [profileTabCreateProfile]"));
     }
     else if (generalWid->connectionType->currentText() == QString("macvlan")) {
-        if (ethernetWid->isOk() == 1) {
-            errorWin = new ErrorWindow(this, debug, 7);
-            errorWin->show();
-            return;
-        }
+        if (ethernetWid->isOk() == 1)
+            return errorWin->showWindow(7, QString("[MainWindow] : [profileTabCreateProfile]"));
     }
 
     ui->tabWidget->setDisabled(true);
@@ -1333,11 +1257,8 @@ void MainWindow::setHiddenName(const QString name)
 void MainWindow::wifiTabStart()
 {
     if (debug) qDebug() << "[MainWindow]" << "[wifiTabStart]";
-    if (!checkExternalApps(QString("wpasup"))) {
-        errorWin = new ErrorWindow(this, debug, 1);
-        errorWin->show();
-        return;
-    }
+    if (!checkExternalApps(QString("wpasup")))
+        return errorWin->showWindow(1, QString("[MainWindow] : [wifiTabStart]"));
     if (ui->tableWidget_wifi->currentItem() == 0)
         return;
 
@@ -1404,11 +1325,8 @@ void MainWindow::wifiTabRefreshButtons(QTableWidgetItem *current, QTableWidgetIt
 {
     Q_UNUSED(previous);
     if (debug) qDebug() << "[MainWindow]" << "[wifiTabRefreshButtons]";
-    if (!checkExternalApps(QString("wpasup"))) {
-        errorWin = new ErrorWindow(this, debug, 1);
-        errorWin->show();
-        return;
-    }
+    if (!checkExternalApps(QString("wpasup")))
+        return errorWin->showWindow(1, QString("[MainWindow] : [wifiTabRefreshButtons]"));
     if (current == 0) {
         ui->pushButton_wifiStart->setDisabled(true);
         return;