diff --git a/src/blackmisc/applicationinfolist.cpp b/src/blackmisc/applicationinfolist.cpp
index dc7c05cb1..565c872e0 100644
--- a/src/blackmisc/applicationinfolist.cpp
+++ b/src/blackmisc/applicationinfolist.cpp
@@ -21,4 +21,19 @@ namespace BlackMisc
     {
         return this->contains(&CApplicationInfo::application, application);
     }
+
+    int CApplicationInfoList::removeApplication(CApplicationInfo::Application application)
+    {
+        return this->removeIf(&CApplicationInfo::application, application);
+    }
+
+    QStringList CApplicationInfoList::runningProcessNames() const
+    {
+        QStringList names;
+        for (const CApplicationInfo &info : *this)
+        {
+            names.append(info.processInfo().processName());
+        }
+        return names;
+    }
 }
diff --git a/src/blackmisc/applicationinfolist.h b/src/blackmisc/applicationinfolist.h
index e28f4ebd3..3252b3613 100644
--- a/src/blackmisc/applicationinfolist.h
+++ b/src/blackmisc/applicationinfolist.h
@@ -36,6 +36,12 @@ namespace BlackMisc
 
         //! List containing entry for CApplicationInfo::Application ?
         bool containsApplication(CApplicationInfo::Application application) const;
+
+        //! Remove given application
+        int removeApplication(CApplicationInfo::Application application);
+
+        //! Running application names
+        QStringList runningProcessNames() const;
     };
 }
 
diff --git a/src/swiftlauncher/swiftlauncher.cpp b/src/swiftlauncher/swiftlauncher.cpp
index 84e5f9b2e..882ab1098 100644
--- a/src/swiftlauncher/swiftlauncher.cpp
+++ b/src/swiftlauncher/swiftlauncher.cpp
@@ -24,6 +24,7 @@
 #include <QBitmap>
 #include <QTimer>
 #include <QProcess>
+#include <QStringBuilder>
 #include <QDesktopServices>
 #include <QShortcut>
 #include <qcompilerdetection.h>
@@ -359,6 +360,20 @@ void CSwiftLauncher::saveSetup()
     m_setup.set(setup);
 }
 
+bool CSwiftLauncher::warnAboutOtherSwiftApplications()
+{
+    CApplicationInfoList running = CGuiApplication::getRunningApplications();
+    running.removeApplication(CApplicationInfo::Laucher);
+    if (running.isEmpty()) { return true; }
+
+    // getting here means another application is running
+    const QString msg =
+        QStringLiteral("While using the wizard no other application should run.\nClose applications and try again.\nCurrently running: ") %
+        running.runningProcessNames().join(',');
+    QMessageBox::question(this, "Wizard", msg, QMessageBox::Close);
+    return false;
+}
+
 QString CSwiftLauncher::toCmdLine(const QString &exe, const QStringList &exeArgs)
 {
     if (exeArgs.isEmpty()) { return exe; }
@@ -527,6 +542,8 @@ void CSwiftLauncher::ps_checkRunningApplicationsAndCore()
 
 void CSwiftLauncher::ps_startWizard()
 {
+    const bool show = this->warnAboutOtherSwiftApplications();
+    if (!show) { return; }
     if (!m_wizard)
     {
         m_wizard.reset(new CConfigurationWizard(this));
diff --git a/src/swiftlauncher/swiftlauncher.h b/src/swiftlauncher/swiftlauncher.h
index 08701abfe..076c9bfb1 100644
--- a/src/swiftlauncher/swiftlauncher.h
+++ b/src/swiftlauncher/swiftlauncher.h
@@ -79,7 +79,7 @@ private:
     QScopedPointer<Ui::CSwiftLauncher> ui;
     QScopedPointer<BlackGui::Components::CConfigurationWizard> m_wizard;
     BlackMisc::CData<BlackCore::Data::TUpdateInfo> m_updateInfo { this, &CSwiftLauncher::ps_changedUpdateInfoCache }; //!< version cache
-    BlackMisc::CData<BlackCore::Data::TLauncherSetup> m_setup { this }; //! setup, ie last user selection
+    BlackMisc::CData<BlackCore::Data::TLauncherSetup> m_setup { this }; //!< setup, i.e. last user selection
     QString     m_executable;
     QStringList m_executableArgs;
     QTimer      m_checkTimer { this };
@@ -140,6 +140,9 @@ private:
     //! Save state
     void saveSetup();
 
+    //! Check for other swift applications, if so show message box
+    bool warnAboutOtherSwiftApplications();
+
     //! Command line
     static QString toCmdLine(const QString &exe, const QStringList &exeArgs);
 
@@ -183,7 +186,7 @@ private slots:
     //! Show the log page
     void ps_showLogPage();
 
-    //! Check if applicationas are already running
+    //! Check if applications are already running
     void ps_checkRunningApplicationsAndCore();
 
     //! Start the configuration wizard