diff --git a/UpdatePTUDevCtrl/worker.cpp b/UpdatePTUDevCtrl/worker.cpp
index 6052bb9..bbca797 100644
--- a/UpdatePTUDevCtrl/worker.cpp
+++ b/UpdatePTUDevCtrl/worker.cpp
@@ -429,12 +429,6 @@ void Worker::stopProgressLoop() {
     displayProgressInMainWindow(MainWindow::STOP_PROGRESS_LOOP);
 }
 
-//static std::once_flag once;
-//void Worker::run() {
-    // user should not start the update process several times
-//    std::call_once(once, &Worker::privateUpdate, this);
-//}
-
 bool Worker::isRepositoryCorrupted() {
     QDir customerRepository(m_customerRepository);
     if (customerRepository.exists()) {
diff --git a/UpdatePTUDevCtrl/worker.h b/UpdatePTUDevCtrl/worker.h
index da18be8..abdb90c 100644
--- a/UpdatePTUDevCtrl/worker.h
+++ b/UpdatePTUDevCtrl/worker.h
@@ -406,9 +406,6 @@ private:
     hwinf *m_hw = nullptr;
     UPDATE_STEP m_lastFailedUpdateStep = UPDATE_STEP::NONE;
 
-protected:
-    virtual void run();
-
 public:
     UPDATE_STEP lastFailedUpdateStep() const {
         return m_lastFailedUpdateStep;