diff --git a/app/scanner/mainwindow.cpp b/app/scanner/mainwindow.cpp
index 024097c5..5fd3234a 100644
--- a/app/scanner/mainwindow.cpp
+++ b/app/scanner/mainwindow.cpp
@@ -85,15 +85,11 @@ MainWindow::MainWindow(QWidget *parent)
 
     HGChar logFilePath[512];
     HGBase_GetLogFilePath(logFilePath, 512);
-    deleteFile(QString::fromStdString(getStdString(logFilePath)));
+    deleteOverdueLogFile(QString::fromStdString(getStdString(logFilePath)));
 
     HGChar cfgFilePath[512];
     HGBase_GetConfigPath(cfgFilePath, 512);
-    deleteFile(QString::fromStdString(getStdString(cfgFilePath)));
-
-    HGChar upgradeDpkgPath[512];
-    HGBase_GetTmpPath(upgradeDpkgPath, 512);
-    deleteFile(QString::fromStdString(getStdString(upgradeDpkgPath)));
+    deleteUpgradePkg(QString::fromStdString(getStdString(cfgFilePath)));
 
 #if defined(OEM_HANWANG)
     this->setWindowIcon(QIcon(":images/image_rsc/logo/Hanvon_logo1.ico"));
@@ -3947,9 +3943,9 @@ QString MainWindow::getLogInfo(HGResult ret)
     return str;
 }
 
-void MainWindow::deleteFile(QString filePath)
+void MainWindow::deleteOverdueLogFile(const QString& logFilePath)
 {
-    QDir dir(filePath);
+    QDir dir(logFilePath);
     if(!dir.exists())
     {
         return;
@@ -3977,7 +3973,30 @@ void MainWindow::deleteFile(QString filePath)
                 HGBase_DeleteFile(info.absoluteFilePath().toStdString().c_str());
             }
         }
-        else if(suffix == "exe")
+    }
+}
+
+void MainWindow::deleteUpgradePkg(const QString &cfgFilePath)
+{
+    QDir dir(cfgFilePath);
+    if(!dir.exists())
+    {
+        return;
+    }
+    dir.setFilter(QDir::Files | QDir::NoSymLinks);
+    QFileInfoList list = dir.entryInfoList();
+
+    int count = list.count();
+    if(count <= 0)
+    {
+        return;
+    }
+
+    for(int i=0; i < count; i++)
+    {
+        QFileInfo info = list.at(i);
+        QString suffix = info.suffix();
+        if(suffix == "exe")
         {
             HGBase_DeleteFile(info.absoluteFilePath().toStdString().c_str());
         }
@@ -4087,7 +4106,7 @@ void MainWindow::on_actionact_update_triggered()
             HGBase_GetFileSuffix(url.toStdString().c_str(), suffix, 64);
 
             HGChar savePath[512];
-            HGBase_GetTmpPath(savePath, 512);
+            HGBase_GetConfigPath(savePath, 512);
             HGBase_CreateDir(savePath);
 
             HGChar fileName[128];
diff --git a/app/scanner/mainwindow.h b/app/scanner/mainwindow.h
index 93bcda6e..e1908110 100644
--- a/app/scanner/mainwindow.h
+++ b/app/scanner/mainwindow.h
@@ -265,7 +265,8 @@ private:
     bool isLimitAccessFolder(QString filePath);
     static QString GetDevType(const QString& fwVersion);
     void upgradeFwAndLockDevice();
-    void deleteFile(QString filePath);
+    void deleteOverdueLogFile(const QString& logFilePath);
+    void deleteUpgradePkg(const QString& cfgFilePath);
 
 private:
     Ui::MainWindow *ui;
diff --git a/build-qt/HGSolution/HGScanner/HGScanner.pro b/build-qt/HGSolution/HGScanner/HGScanner.pro
index d95273f8..d133a36c 100644
--- a/build-qt/HGSolution/HGScanner/HGScanner.pro
+++ b/build-qt/HGSolution/HGScanner/HGScanner.pro
@@ -236,7 +236,6 @@ HEADERS += \
     ../../../app/scanner/widget_statusbar.h \
     ../../../app/scanner/dialog_admin.h \
     ../../../app/scanner/dialog_log.h \
-    ../../../app/scanner/config.h \
     ../../../app/scanner/cfg/gb_json.h \
     ../../../app/scanner/cfg/cJSON.h \
     ../../../app/scanner/HGImgThumb.h \