diff --git a/source/ublexec.cc b/source/ublexec.cc
index ead01c1..fe28f09 100644
--- a/source/ublexec.cc
+++ b/source/ublexec.cc
@@ -70,8 +70,6 @@ void MainWindow::get_builder() {
     builder->get_widget("messageError", messageError);
     builder->get_widget("lblMessageError", lblMessageError);
     builder->get_widget("btnMessageErrorOk", btnMessageErrorOk);
-    builder->get_widget("btnMessageErrorOk", btnMessageErrorOk);
-    builder->get_widget("btnMessageErrorOk", btnMessageErrorOk);
     builder->get_widget("dialogStartMenu", dialogStartMenu);
     builder->get_widget("btnStartMenuOK", btnStartMenuOK);
     builder->get_widget("btnStartMenuExit", btnStartMenuExit);
@@ -180,7 +178,7 @@ void MainWindow::localization() {
     lblInfoExec->set_text(gettext("Change startup priority"));
     lblInfoPriority->set_text(gettext("Priority:"));
     lblMessageError->set_text(gettext("Select an executable file or program"));
-    messageError->set_title(gettext("Warning!"));
+    messageError->set_title(gettext("Attention"));
     lblGraphics->set_text(gettext("Graphics"));
     lblTools->set_text(gettext("Tools"));
     lblInternet->set_text(gettext("Internet"));
@@ -194,6 +192,7 @@ void MainWindow::localization() {
     btnListApp->set_tooltip_text(gettext("Application Overview"));
     btnFilemaneg->set_tooltip_text(gettext("File Overview"));
     btnStartMenuExit->set_label(gettext("Cancel"));
+    btnMessageErrorOk->set_label(gettext("Close"));
 }
 
 void MainWindow::event() {
@@ -638,7 +637,7 @@ string MainWindow::start_cmd(string user_cmd) {
         str_nice_cmd = "nice -n " + to_string(spinPriority->get_value_as_int()) + " ";
     }
     if (user_cmd.length() == 0 && name_app.length() == 0 && path_file.length() == 0) {
-        messageError->set_title(gettext("Warning!"));
+        messageError->set_title(gettext("Attention"));
         messageError->show();
         return "";
     }
@@ -707,7 +706,7 @@ void MainWindow::denamic_cmd() {
             name_app = "";
             user_cmd = "";
             txtCmd->set_text(user_cmd);
-            messageError->set_title(gettext("Warning!"));
+            messageError->set_title(gettext("Attention"));
             messageError->show();
         }
         else{
diff --git a/source/ublexec.h b/source/ublexec.h
index a9af788..407423d 100644
--- a/source/ublexec.h
+++ b/source/ublexec.h
@@ -147,7 +147,7 @@ public:
         Gtk::Label *lblTimeEpriorityLow;
         Gtk::Label *lblTime4EpriorityHigh;
         Gtk::Label *lblUserName;
-        Gtk::MessageDialog *messageError;
+        Gtk::Window *messageError;
         Gtk::Button *btnMessageErrorOk;
         Gtk::Label *lblMessageError;
         Gtk::Button *btnStartMenuOK;
diff --git a/ublexec.glade b/ublexec.glade
index 61c744e..98a67a5 100644
--- a/ublexec.glade
+++ b/ublexec.glade
@@ -1921,67 +1921,107 @@ with the specified priority</property>
       </object>
     </child>
   </object>
-  <object class="GtkMessageDialog" id="messageError">
+  <object class="GtkWindow" id="messageError">
     <property name="can-focus">False</property>
-    <property name="title" translatable="yes">Warning!</property>
-    <property name="icon-name">com.ublinux.ublexec</property>
-    <property name="type-hint">dialog</property>
-    <child internal-child="vbox">
+    <property name="valign">start</property>
+    <property name="resizable">False</property>
+    <child>
       <object class="GtkBox">
+        <property name="visible">True</property>
         <property name="can-focus">False</property>
         <property name="orientation">vertical</property>
-        <property name="spacing">2</property>
-        <child internal-child="action_area">
-          <object class="GtkButtonBox">
+        <child>
+          <object class="GtkBox">
+            <property name="visible">True</property>
             <property name="can-focus">False</property>
-            <property name="homogeneous">True</property>
-            <property name="layout-style">end</property>
             <child>
-              <placeholder/>
+              <object class="GtkImage">
+                <property name="visible">True</property>
+                <property name="can-focus">False</property>
+                <property name="halign">center</property>
+                <property name="valign">start</property>
+                <property name="margin-left">20</property>
+                <property name="margin-right">20</property>
+                <property name="margin-start">20</property>
+                <property name="margin-end">20</property>
+                <property name="margin-top">20</property>
+                <property name="margin-bottom">20</property>
+                <property name="icon-name">dialog-warning-symbolic</property>
+                <property name="icon_size">6</property>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="fill">True</property>
+                <property name="position">1</property>
+              </packing>
             </child>
             <child>
-              <object class="GtkButton" id="btnMessageErrorOk">
-                <property name="label" translatable="yes">OK</property>
+              <object class="GtkLabel" id="lblMessageError">
                 <property name="visible">True</property>
-                <property name="can-focus">True</property>
-                <property name="receives-default">True</property>
-                <property name="margin-left">5</property>
-                <property name="margin-right">5</property>
-                <property name="margin-start">5</property>
-                <property name="margin-end">5</property>
-                <property name="margin-top">6</property>
-                <property name="margin-bottom">6</property>
+                <property name="can-focus">False</property>
+                <property name="halign">center</property>
+                <property name="valign">start</property>
+                <property name="margin-left">10</property>
+                <property name="margin-right">25</property>
+                <property name="margin-start">10</property>
+                <property name="margin-end">25</property>
+                <property name="margin-top">34</property>
+                <property name="margin-bottom">20</property>
+                <property name="label">Select an executable file or program</property>
+                <property name="wrap">True</property>
+                <property name="xalign">0</property>
               </object>
               <packing>
                 <property name="expand">True</property>
                 <property name="fill">True</property>
-                <property name="position">1</property>
+                <property name="position">2</property>
               </packing>
             </child>
           </object>
           <packing>
-            <property name="expand">False</property>
-            <property name="fill">False</property>
+            <property name="expand">True</property>
+            <property name="fill">True</property>
             <property name="position">0</property>
           </packing>
         </child>
         <child>
-          <object class="GtkLabel" id="lblMessageError">
+          <object class="GtkButton" id="btnMessageErrorOk">
+            <property name="label" translatable="yes">Close</property>
             <property name="visible">True</property>
-            <property name="can-focus">False</property>
-            <property name="margin-left">10</property>
-            <property name="margin-right">10</property>
-            <property name="margin-bottom">15</property>
-            <property name="label" translatable="yes">Select an executable file or program</property>
+            <property name="can-focus">True</property>
+            <property name="receives-default">True</property>
+            <property name="margin-left">5</property>
+            <property name="margin-right">5</property>
+            <property name="margin-start">5</property>
+            <property name="margin-end">5</property>
+            <property name="margin-top">5</property>
+            <property name="margin-bottom">5</property>
           </object>
           <packing>
-            <property name="expand">True</property>
+            <property name="expand">False</property>
             <property name="fill">True</property>
             <property name="position">2</property>
           </packing>
         </child>
       </object>
     </child>
+    <child type="titlebar">
+      <object class="GtkHeaderBar">
+        <property name="visible">True</property>
+        <property name="can-focus">False</property>
+        <property name="title" translatable="yes">Warning!</property>
+        <property name="show-close-button">True</property>
+        <child>
+          <object class="GtkImage">
+            <property name="visible">True</property>
+            <property name="can-focus">False</property>
+            <property name="pixel-size">32</property>
+            <property name="icon-name">com.ublinux.ublexec</property>
+            <property name="icon_size">5</property>
+          </object>
+        </child>
+      </object>
+    </child>
   </object>
   <object class="GtkFileChooserDialog" id="wndChooseFileWallpaper">
     <property name="can-focus">False</property>
diff --git a/ublexec.pot b/ublexec.pot
index 213feb7..9b8de70 100644
--- a/ublexec.pot
+++ b/ublexec.pot
@@ -187,7 +187,7 @@ msgid "User Name:"
 msgstr ""
 
 #: source/ublexec.cc:180 source/ublexec.cc:631 source/ublexec.cc:700
-msgid "Warning!"
+msgid "Attention"
 msgstr ""
 
 #: source/ublexec.cc:157 source/ublexec.cc:154
@@ -217,8 +217,12 @@ msgstr ""
 
 #: source/main.cc:60
 msgid "ublexec version: "
-msgstr "https://wiki.ublinux.ru"
+msgstr ""
 
 #: source/main.cc:970
 msgid "ublexec version: "
-msgstr "https://wiki.ublinux.ru"
+msgstr ""
+
+#: source/main.cc:197
+msgid "Close"
+msgstr ""
diff --git a/ublexec_ru.po b/ublexec_ru.po
index ed5156c..d069d6b 100644
--- a/ublexec_ru.po
+++ b/ublexec_ru.po
@@ -189,8 +189,8 @@ msgid "User Name:"
 msgstr "Имя пользователя:"
 
 #: source/ublexec.cc:180 source/ublexec.cc:631 source/ublexec.cc:700
-msgid "Warning!"
-msgstr "Внимание!"
+msgid "Attention"
+msgstr "Внимание"
 
 #: source/ublexec.cc:157 source/ublexec.cc:154
 msgid "https://wiki.ublinux.com"
@@ -239,3 +239,7 @@ msgstr ""
 "  -V, --version\t        Показать версию пакета\n"
 "  -x APP_NAME           Запуск программы\n"
 "  -e FILE_NAME          Запуск файла\n"
+
+#: source/main.cc:197
+msgid "Close"
+msgstr "Закрыть"