diff --git a/ui/mainwindow.cpp b/ui/mainwindow.cpp
index 0978a37..f4a95d3 100644
--- a/ui/mainwindow.cpp
+++ b/ui/mainwindow.cpp
@@ -172,6 +172,11 @@ void MainWindow::initService()
                                          KYLIN_CONNECTIVITY_MANAGER_INTERFACE, QDBusConnection::systemBus());
     QObject::connect(m_dbusInterface, SIGNAL(sigMountError(bool, QString)), this, SLOT(slotMountError(bool, QString)));
     QObject::connect(m_dbusInterface, SIGNAL(sigInitDiscServer(bool)), this, SLOT(slotInitDiscServerResult(bool)));
+
+
+    m_discovery = new KMobileDiscovery::Discovery();
+    connect(m_discovery, &KMobileDiscovery::Discovery::sigAllDeviceInfo, this, &MainWindow::slotAllDeviceInfo);
+
     discInit();
 }
 
@@ -281,6 +286,8 @@ void MainWindow::deleterService()
         if (m_dbusInterface->isValid()) {
             m_dbusInterface->call("killServerPortProcess");
         }
+        delete m_dbusInterface;
+        m_dbusInterface = nullptr;
     }
 }
 
@@ -418,7 +425,7 @@ void MainWindow::connectUI()
 
         stopLoadUI();
 
-        // m_discovery->stopDiscovery();
+        m_discovery->stopDiscovery();
 
         QString str1 = "";
         if (m_connectInfo.deviceRole == ConnectionService::DeviceRole::INITIATOR) {
@@ -827,7 +834,7 @@ void MainWindow::slotFtpConnected()
     m_isMountFtp = true;
     Q_EMIT sigConnected(m_connectInfo.deviceName);
     if (m_connectInfo.deviceType == ConnectionService::DeviceType::PC) {
-        // initPcSearchInfo();
+        initPcSearchInfo();
         updateResult();
         slotCdMobileStorageDirectory("/");
     } else if (m_connectInfo.deviceType == ConnectionService::DeviceType::ANDROID) {
@@ -928,7 +935,7 @@ void MainWindow::slotDownTempFileFinish(QString filePath)
     stopLoadUI();
     if (m_isPcSearchInfo) {
         m_isPcSearchInfo = false;
-        m_titlebar->onSearchInstalled(true, filePath);
+        // m_titlebar->onSearchInstalled(true, filePath);
     } else if (!filePath.isEmpty()) {
         FileInfo::fileOpen(filePath);
     } else {
@@ -1569,8 +1576,6 @@ void MainWindow::slotInitDiscServerResult(bool flag)
         connect(m_discClient, &QProcess::started, this, [=]() {
             qInfo() << "softbus init success";
             GenerateTools::delayMs(500);
-            m_discovery = new KMobileDiscovery::Discovery();
-            connect(m_discovery, &KMobileDiscovery::Discovery::sigAllDeviceInfo, this, &MainWindow::slotAllDeviceInfo);
             m_discovery->startDiscovery();
         });
         connect(m_discClient, &QProcess::readyReadStandardError, this, [=]() {