diff --git a/Build.Counter b/Build.Counter
index d9575c3f..f0a82b4d 100644
--- a/Build.Counter
+++ b/Build.Counter
@@ -1 +1 @@
-1897
+1904
diff --git a/Qv2ray.pro b/Qv2ray.pro
index 51885cfb..23956f6a 100644
--- a/Qv2ray.pro
+++ b/Qv2ray.pro
@@ -41,6 +41,7 @@ SOURCES += \
         src/QvCoreConfigOperations_Convertion.cpp \
         src/QvCoreConfigOperations_Generation.cpp \
         src/QvUtils.cpp \
+        src/ui/w_PreferencesWindow.cpp \
         src/utils/QJsonModel.cpp \
         src/ui/w_ExportConfig.cpp \
         src/ui/w_InboundEditor.cpp \
@@ -50,7 +51,6 @@ SOURCES += \
         src/ui/w_JsonEditor.cpp \
         src/ui/w_MainWindow.cpp \
         src/ui/w_ImportConfig.cpp \
-        src/ui/w_PrefrencesWindow.cpp \
         src/ui/w_ScreenShot_Core.cpp \
         src/ui/NetSpeedBar/QvNetSpeedBar.cpp \
         libs/gen/v2ray_api_commands.pb.cc \
@@ -83,7 +83,7 @@ HEADERS += \
         src/ui/w_JsonEditor.hpp \
         src/ui/w_MainWindow.hpp \
         src/ui/w_OutboundEditor.hpp \
-        src/ui/w_PrefrencesWindow.hpp \
+        src/ui/w_PreferencesWindow.hpp \
         src/ui/w_RoutesEditor.hpp \
         src/ui/w_SubscriptionEditor.hpp \
         src/ui/w_ScreenShot_Core.hpp \
@@ -100,7 +100,7 @@ FORMS += \
         src/ui/w_JsonEditor.ui \
         src/ui/w_MainWindow.ui \
         src/ui/w_OutboundEditor.ui \
-        src/ui/w_PrefrencesWindow.ui \
+        src/ui/w_PreferencesWindow.ui \
         src/ui/w_RoutesEditor.ui \
         src/ui/w_ScreenShot_Core.ui \
         src/ui/w_SubscriptionEditor.ui
diff --git a/src/QvUtils.hpp b/src/QvUtils.hpp
index 3e2fc1fd..737b5374 100644
--- a/src/QvUtils.hpp
+++ b/src/QvUtils.hpp
@@ -94,6 +94,23 @@ namespace Qv2ray
             // If no match, we are good.
             return QRegExp(R"([\/\\\"?%*:|><]|(^\.{1,2}$))").indexIn(str) == -1;
         }
+
+
+        // These functions a sugers to prevent warnings from deprecated Qt 5.14 functions.
+        template<typename TYPE>
+        std::list<TYPE> toStdList(QList<TYPE> list)
+        {
+            std::list<TYPE> _list{list.begin(), list.end()};
+            return _list;
+        }
+
+        template<typename TYPE>
+        QList<TYPE> toQList(std::list<TYPE> list)
+        {
+            QList<TYPE> _list{list.begin(), list.end()};
+            return _list;
+        }
+
     }
 }
 
diff --git a/src/components/QvCoreInteractions.cpp b/src/components/QvCoreInteractions.cpp
index 11670a12..81186dcb 100644
--- a/src/components/QvCoreInteractions.cpp
+++ b/src/components/QvCoreInteractions.cpp
@@ -47,7 +47,7 @@ namespace Qv2ray
                 QvMessageBox(nullptr, tr("Cannot start v2ray"),
                              tr("v2ray core file cannot be found at:") + NEWLINE +
                              QSTRING(conf.v2CorePath) + NEWLINE + NEWLINE  +
-                             tr("Please go to Prefrence Window to change the location.") + NEWLINE +
+                             tr("Please go to Preference Window to change the location.") + NEWLINE +
                              tr("Or place your v2ray core file in the location above."));
                 return false;
             }
diff --git a/src/main.cpp b/src/main.cpp
index da78c529..18c460aa 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -260,7 +260,7 @@ int main(int argc, char *argv[])
         QvMessageBox(
             nullptr, "Translation Failed",
             "Cannot load translation for " + QSTRING(confObject.uiConfig.language) + ", English is now used.\r\n\r\n"
-            "Please go to Prefrences Window to change or Report a Bug at: \r\n"
+            "Please go to Preferences Window to change or Report a Bug at: \r\n"
             "https://github.com/lhy0403/Qv2ray/issues/new");
     }
 
diff --git a/src/ui/w_InboundEditor.ui b/src/ui/w_InboundEditor.ui
index 5d2d8db3..7593f2f6 100644
--- a/src/ui/w_InboundEditor.ui
+++ b/src/ui/w_InboundEditor.ui
@@ -702,7 +702,7 @@
           <item row="0" column="0" colspan="2">
            <widget class="QLabel" name="label_30">
             <property name="text">
-             <string>If you want to use tProxy, please go to Prefrence Window to enable this feature.</string>
+             <string>If you want to use tProxy, please go to Preference Window to enable this feature.</string>
             </property>
            </widget>
           </item>
diff --git a/src/ui/w_MainWindow.cpp b/src/ui/w_MainWindow.cpp
index 2d4e74ea..05117618 100644
--- a/src/ui/w_MainWindow.cpp
+++ b/src/ui/w_MainWindow.cpp
@@ -16,7 +16,7 @@
 #include "w_OutboundEditor.hpp"
 #include "w_ImportConfig.hpp"
 #include "w_RoutesEditor.hpp"
-#include "w_PrefrencesWindow.hpp"
+#include "w_PreferencesWindow.hpp"
 #include "w_SubscriptionEditor.hpp"
 #include "w_JsonEditor.hpp"
 #include "w_ExportConfig.hpp"
@@ -213,7 +213,7 @@ MainWindow::MainWindow(QWidget *parent):
         } else {
             QvMessageBox(this, tr("Autostarting a config"), tr("Could not find a specified config named: ") + NEWLINE +
                          name + NEWLINE + NEWLINE +
-                         tr("Please reset the settings in Prefrence Window"));
+                         tr("Please reset the settings in Preference Window"));
             this->show();
         }
     } else if (connectionListWidget->topLevelItemCount() > 0) {
@@ -341,7 +341,7 @@ void MainWindow::ReloadConnections()
         connectionListWidget->addTopLevelItem(new QTreeWidgetItem(QStringList() << _o.connectionName));
     }
 
-    auto _subsConnections = GetSubscriptionConnections(QMap<string, string>(currentConfig.subscribes).keys().toStdList());
+    auto _subsConnections = GetSubscriptionConnections(toStdList(QMap<string, string>(currentConfig.subscribes).keys()));
 
     for (auto i = 0; i < _subsConnections.count(); i++) {
         auto subName = _subsConnections.keys()[i];
@@ -574,7 +574,7 @@ void MainWindow::on_stopButton_clicked()
             LOG(MODULE_UI, "Stopping PAC server")
         }
 
-        // BUG If unset from the prefrences. this will not work...
+        // BUG If unset from the preferences. this will not work...
         if (currentConfig.inboundConfig.setSystemProxy) {
             ClearSystemProxy();
             LOG(MODULE_UI, "Clearing System Proxy")
@@ -726,10 +726,10 @@ void MainWindow::ShowAndSetConnection(QString guiConnectionName, bool SetConnect
         on_reconnectButton_clicked();
     }
 }
-void MainWindow::on_prefrencesBtn_clicked()
+void MainWindow::on_preferencesBtn_clicked()
 {
-    PrefrencesWindow *w = new PrefrencesWindow(this);
-    connect(w, &PrefrencesWindow::s_reload_config, this, &MainWindow::OnConfigListChanged);
+    PreferencesWindow *w = new PreferencesWindow(this);
+    connect(w, &PreferencesWindow::s_reload_config, this, &MainWindow::OnConfigListChanged);
     w->show();
 }
 void MainWindow::on_connectionListWidget_doubleClicked(const QModelIndex &index)
diff --git a/src/ui/w_MainWindow.hpp b/src/ui/w_MainWindow.hpp
index 7238301a..7fcd26a9 100644
--- a/src/ui/w_MainWindow.hpp
+++ b/src/ui/w_MainWindow.hpp
@@ -56,7 +56,7 @@ class MainWindow : public QMainWindow, Ui::MainWindow
         void quit();
         void on_actionExit_triggered();
 
-        void on_prefrencesBtn_clicked();
+        void on_preferencesBtn_clicked();
 
         void on_connectionListWidget_doubleClicked(const QModelIndex &index);
 
diff --git a/src/ui/w_MainWindow.ui b/src/ui/w_MainWindow.ui
index b5ca9763..a761dfe2 100644
--- a/src/ui/w_MainWindow.ui
+++ b/src/ui/w_MainWindow.ui
@@ -83,9 +83,9 @@
        </widget>
       </item>
       <item>
-       <widget class="QPushButton" name="prefrencesBtn">
+       <widget class="QPushButton" name="preferencesBtn">
         <property name="text">
-         <string>Prefrences</string>
+         <string>Preferences</string>
         </property>
        </widget>
       </item>
@@ -625,7 +625,7 @@
   <tabstop>stopButton</tabstop>
   <tabstop>reconnectButton</tabstop>
   <tabstop>clearlogButton</tabstop>
-  <tabstop>prefrencesBtn</tabstop>
+  <tabstop>preferencesBtn</tabstop>
   <tabstop>importConfigButton</tabstop>
   <tabstop>duplicateBtn</tabstop>
   <tabstop>removeConfigButton</tabstop>
diff --git a/src/ui/w_PrefrencesWindow.cpp b/src/ui/w_PreferencesWindow.cpp
similarity index 84%
rename from src/ui/w_PrefrencesWindow.cpp
rename to src/ui/w_PreferencesWindow.cpp
index dcad2515..7c3b8058 100644
--- a/src/ui/w_PrefrencesWindow.cpp
+++ b/src/ui/w_PreferencesWindow.cpp
@@ -9,15 +9,14 @@
 #include "QvNetSpeedPlugin.hpp"
 #include "QvCoreConfigOperations.hpp"
 
-#include "w_PrefrencesWindow.hpp"
+#include "w_PreferencesWindow.hpp"
 #include "QvHTTPRequestHelper.hpp"
 
 #define LOADINGCHECK if(!finishedLoading) return;
 #define NEEDRESTART if(finishedLoading) IsConnectionPropertyChanged = true;
 
-PrefrencesWindow::PrefrencesWindow(QWidget *parent) : QDialog(parent),
-    CurrentConfig(),
-    ui(new Ui::PrefrencesWindow)
+PreferencesWindow::PreferencesWindow(QWidget *parent) : QDialog(parent),
+    CurrentConfig()
 {
     setupUi(this);
     setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);
@@ -144,7 +143,7 @@ PrefrencesWindow::PrefrencesWindow(QWidget *parent) : QDialog(parent),
     autoStartSubsCombo->setCurrentText(autoSub);
 
     if (CurrentConfig.autoStartConfig.subscriptionName.empty()) {
-        autoStartConnCombo->addItems(ConvertQStringList(QList<string>::fromStdList(CurrentConfig.configs)));
+        autoStartConnCombo->addItems(ConvertQStringList(toQList(CurrentConfig.configs)));
     } else {
         auto list = GetSubscriptionConnection(autoSub.toStdString());
         autoStartConnCombo->addItems(list.keys());
@@ -154,18 +153,18 @@ PrefrencesWindow::PrefrencesWindow(QWidget *parent) : QDialog(parent),
     finishedLoading = true;
 }
 
-PrefrencesWindow::~PrefrencesWindow()
+PreferencesWindow::~PreferencesWindow()
 {
-    delete ui;
+    //
 }
 
-void PrefrencesWindow::on_buttonBox_accepted()
+void PreferencesWindow::on_buttonBox_accepted()
 {
     int sp = socksPortLE->text().toInt();
     int hp = httpPortLE->text().toInt() ;
 
     if (!(sp == 0 || hp == 0) && sp == hp) {
-        QvMessageBox(this, tr("Prefrences"), tr("Port numbers cannot be the same"));
+        QvMessageBox(this, tr("Preferences"), tr("Port numbers cannot be the same"));
         return;
     }
 
@@ -173,7 +172,7 @@ void PrefrencesWindow::on_buttonBox_accepted()
     emit s_reload_config(IsConnectionPropertyChanged);
 }
 
-void PrefrencesWindow::on_httpCB_stateChanged(int checked)
+void PreferencesWindow::on_httpCB_stateChanged(int checked)
 {
     NEEDRESTART
     bool enabled = checked == Qt::Checked;
@@ -181,7 +180,7 @@ void PrefrencesWindow::on_httpCB_stateChanged(int checked)
     CurrentConfig.inboundConfig.useHTTP = enabled;
 }
 
-void PrefrencesWindow::on_socksCB_stateChanged(int checked)
+void PreferencesWindow::on_socksCB_stateChanged(int checked)
 {
     NEEDRESTART
     bool enabled = checked == Qt::Checked;
@@ -189,7 +188,7 @@ void PrefrencesWindow::on_socksCB_stateChanged(int checked)
     CurrentConfig.inboundConfig.useSocks = enabled;
 }
 
-void PrefrencesWindow::on_httpAuthCB_stateChanged(int checked)
+void PreferencesWindow::on_httpAuthCB_stateChanged(int checked)
 {
     NEEDRESTART
     bool enabled = checked == Qt::Checked;
@@ -198,7 +197,7 @@ void PrefrencesWindow::on_httpAuthCB_stateChanged(int checked)
     CurrentConfig.inboundConfig.http_useAuth = enabled;
 }
 
-void PrefrencesWindow::on_socksAuthCB_stateChanged(int checked)
+void PreferencesWindow::on_socksAuthCB_stateChanged(int checked)
 {
     NEEDRESTART
     bool enabled = checked == Qt::Checked;
@@ -207,7 +206,7 @@ void PrefrencesWindow::on_socksAuthCB_stateChanged(int checked)
     CurrentConfig.inboundConfig.socks_useAuth = enabled;
 }
 
-void PrefrencesWindow::on_languageComboBox_currentTextChanged(const QString &arg1)
+void PreferencesWindow::on_languageComboBox_currentTextChanged(const QString &arg1)
 {
     LOADINGCHECK
     //
@@ -221,68 +220,68 @@ void PrefrencesWindow::on_languageComboBox_currentTextChanged(const QString &arg
     //    LOG(MODULE_UI, "Loaded translations " + arg1.toStdString())
     //    retranslateUi(this);
     //} else {
-    //    QvMessageBox(this, tr("#Prefrences"), tr("#SwitchTranslationError"));
+    //    QvMessageBox(this, tr("#Preferences"), tr("#SwitchTranslationError"));
     //}
     //
     //emit retranslateUi(this);
 }
 
-void PrefrencesWindow::on_logLevelComboBox_currentIndexChanged(int index)
+void PreferencesWindow::on_logLevelComboBox_currentIndexChanged(int index)
 {
     NEEDRESTART
     CurrentConfig.logLevel = index;
 }
 
-void PrefrencesWindow::on_vCoreAssetsPathTxt_textEdited(const QString &arg1)
+void PreferencesWindow::on_vCoreAssetsPathTxt_textEdited(const QString &arg1)
 {
     NEEDRESTART
     CurrentConfig.v2AssetsPath = arg1.toStdString();
 }
 
-void PrefrencesWindow::on_listenIPTxt_textEdited(const QString &arg1)
+void PreferencesWindow::on_listenIPTxt_textEdited(const QString &arg1)
 {
     NEEDRESTART
     CurrentConfig.inboundConfig.listenip = arg1.toStdString();
     //pacAccessPathTxt->setText("http://" + arg1 + ":" + QString::number(pacPortSB->value()) + "/pac");
 }
 
-void PrefrencesWindow::on_httpAuthUsernameTxt_textEdited(const QString &arg1)
+void PreferencesWindow::on_httpAuthUsernameTxt_textEdited(const QString &arg1)
 {
     NEEDRESTART
     CurrentConfig.inboundConfig.httpAccount.user = arg1.toStdString();
 }
 
-void PrefrencesWindow::on_httpAuthPasswordTxt_textEdited(const QString &arg1)
+void PreferencesWindow::on_httpAuthPasswordTxt_textEdited(const QString &arg1)
 {
     NEEDRESTART
     CurrentConfig.inboundConfig.httpAccount.pass = arg1.toStdString();
 }
 
-void PrefrencesWindow::on_socksAuthUsernameTxt_textEdited(const QString &arg1)
+void PreferencesWindow::on_socksAuthUsernameTxt_textEdited(const QString &arg1)
 {
     NEEDRESTART
     CurrentConfig.inboundConfig.socksAccount.user = arg1.toStdString();
 }
 
-void PrefrencesWindow::on_socksAuthPasswordTxt_textEdited(const QString &arg1)
+void PreferencesWindow::on_socksAuthPasswordTxt_textEdited(const QString &arg1)
 {
     NEEDRESTART
     CurrentConfig.inboundConfig.socksAccount.pass = arg1.toStdString();
 }
 
-void PrefrencesWindow::on_proxyDefaultCb_stateChanged(int arg1)
+void PreferencesWindow::on_proxyDefaultCb_stateChanged(int arg1)
 {
     NEEDRESTART
     CurrentConfig.connectionConfig.enableProxy = arg1 == Qt::Checked;
 }
 
-void PrefrencesWindow::on_localDNSCb_stateChanged(int arg1)
+void PreferencesWindow::on_localDNSCb_stateChanged(int arg1)
 {
     NEEDRESTART
     CurrentConfig.connectionConfig.withLocalDNS = arg1 == Qt::Checked;
 }
 
-void PrefrencesWindow::on_selectVAssetBtn_clicked()
+void PreferencesWindow::on_selectVAssetBtn_clicked()
 {
     NEEDRESTART
     QString dir = QFileDialog::getExistingDirectory(this, tr("Open v2ray assets folder"), QDir::currentPath());
@@ -293,7 +292,7 @@ void PrefrencesWindow::on_selectVAssetBtn_clicked()
     }
 }
 
-void PrefrencesWindow::on_selectVCoreBtn_clicked()
+void PreferencesWindow::on_selectVCoreBtn_clicked()
 {
     QString core = QFileDialog::getOpenFileName(this, tr("Open v2ray core file"), QDir::currentPath());
 
@@ -303,13 +302,13 @@ void PrefrencesWindow::on_selectVCoreBtn_clicked()
     }
 }
 
-void PrefrencesWindow::on_vCorePathTxt_textEdited(const QString &arg1)
+void PreferencesWindow::on_vCorePathTxt_textEdited(const QString &arg1)
 {
     NEEDRESTART
     CurrentConfig.v2CorePath = arg1.toStdString();
 }
 
-void PrefrencesWindow::on_DNSListTxt_textChanged()
+void PreferencesWindow::on_DNSListTxt_textChanged()
 {
     if (finishedLoading) {
         try {
@@ -331,18 +330,18 @@ void PrefrencesWindow::on_DNSListTxt_textChanged()
     }
 }
 
-void PrefrencesWindow::on_aboutQt_clicked()
+void PreferencesWindow::on_aboutQt_clicked()
 {
     QApplication::aboutQt();
 }
 
-void PrefrencesWindow::on_cancelIgnoreVersionBtn_clicked()
+void PreferencesWindow::on_cancelIgnoreVersionBtn_clicked()
 {
     CurrentConfig.ignoredVersion.clear();
     cancelIgnoreVersionBtn->setEnabled(false);
 }
 
-void PrefrencesWindow::on_tProxyCheckBox_stateChanged(int arg1)
+void PreferencesWindow::on_tProxyCheckBox_stateChanged(int arg1)
 {
 #ifdef __linux
 
@@ -415,7 +414,7 @@ void PrefrencesWindow::on_tProxyCheckBox_stateChanged(int arg1)
 
                 if (ret != 0) {
                     LOG(MODULE_UI, "WARN: setcap exits with code: " + to_string(ret))
-                    QvMessageBox(this, tr("Prefrences"), tr("Failed to setcap onto v2ray executable. You may need to run `setcap` manually."));
+                    QvMessageBox(this, tr("Preferences"), tr("Failed to setcap onto v2ray executable. You may need to run `setcap` manually."));
                 }
 
                 CurrentConfig.tProxySupport = true;
@@ -426,7 +425,7 @@ void PrefrencesWindow::on_tProxyCheckBox_stateChanged(int arg1)
 
             if (ret != 0) {
                 LOG(MODULE_UI, "WARN: setcap exits with code: " + to_string(ret))
-                QvMessageBox(this, tr("Prefrences"), tr("Failed to setcap onto v2ray executable. You may need to run `setcap` manually."));
+                QvMessageBox(this, tr("Preferences"), tr("Failed to setcap onto v2ray executable. You may need to run `setcap` manually."));
             }
 
             CurrentConfig.tProxySupport = false;
@@ -437,49 +436,49 @@ void PrefrencesWindow::on_tProxyCheckBox_stateChanged(int arg1)
 #else
     Q_UNUSED(arg1)
     // No such tProxy thing on Windows and macOS
-    QvMessageBox(this, tr("Prefrences"), tr("tProxy is not supported on macOS and Windows"));
+    QvMessageBox(this, tr("Preferences"), tr("tProxy is not supported on macOS and Windows"));
     CurrentConfig.tProxySupport = false;
     tProxyCheckBox->setChecked(false);
 #endif
 }
-void PrefrencesWindow::on_bypassCNCb_stateChanged(int arg1)
+void PreferencesWindow::on_bypassCNCb_stateChanged(int arg1)
 {
     NEEDRESTART
     CurrentConfig.connectionConfig.bypassCN = arg1 == Qt::Checked;
 }
 
-void PrefrencesWindow::on_statsCheckbox_stateChanged(int arg1)
+void PreferencesWindow::on_statsCheckbox_stateChanged(int arg1)
 {
     NEEDRESTART
     CurrentConfig.connectionConfig.enableStats = arg1 == Qt::Checked;
 }
 
-void PrefrencesWindow::on_statsPortBox_valueChanged(int arg1)
+void PreferencesWindow::on_statsPortBox_valueChanged(int arg1)
 {
     NEEDRESTART
     CurrentConfig.connectionConfig.statsPort = arg1;
 }
 
-void PrefrencesWindow::on_socksPortLE_valueChanged(int arg1)
+void PreferencesWindow::on_socksPortLE_valueChanged(int arg1)
 {
     NEEDRESTART
     CurrentConfig.inboundConfig.socks_port = arg1;
 }
 
-void PrefrencesWindow::on_httpPortLE_valueChanged(int arg1)
+void PreferencesWindow::on_httpPortLE_valueChanged(int arg1)
 {
     NEEDRESTART
     CurrentConfig.inboundConfig.http_port = arg1;
 }
 
-void PrefrencesWindow::on_socksUDPCB_stateChanged(int arg1)
+void PreferencesWindow::on_socksUDPCB_stateChanged(int arg1)
 {
     NEEDRESTART
     CurrentConfig.inboundConfig.socksUDP = arg1 == Qt::Checked;
     socksUDPIP->setEnabled(arg1 == Qt::Checked);
 }
 
-void PrefrencesWindow::on_socksUDPIP_textEdited(const QString &arg1)
+void PreferencesWindow::on_socksUDPIP_textEdited(const QString &arg1)
 {
     NEEDRESTART
     CurrentConfig.inboundConfig.socksLocalIP = arg1.toStdString();
@@ -491,7 +490,7 @@ void PrefrencesWindow::on_socksUDPIP_textEdited(const QString &arg1)
 #define CurrentBarLine CurrentBarPage.Lines[this->CurrentBarLineId]
 #define SET_LINE_LIST_TEXT nsBarLinesList->currentItem()->setText(GetBarLineDescription(CurrentBarLine));
 
-void PrefrencesWindow::on_nsBarPageAddBTN_clicked()
+void PreferencesWindow::on_nsBarPageAddBTN_clicked()
 {
     QvBarPage page;
     CurrentConfig.toolBarConfig.Pages.push_back(page);
@@ -512,7 +511,7 @@ void PrefrencesWindow::on_nsBarPageAddBTN_clicked()
     nsBarPagesList->setCurrentRow(static_cast<int>(CurrentBarPageId));
 }
 
-void PrefrencesWindow::on_nsBarPageDelBTN_clicked()
+void PreferencesWindow::on_nsBarPageDelBTN_clicked()
 {
     if (nsBarPagesList->currentRow() >= 0) {
         RemoveItem(CurrentConfig.toolBarConfig.Pages, static_cast<size_t>(nsBarPagesList->currentRow()));
@@ -530,13 +529,13 @@ void PrefrencesWindow::on_nsBarPageDelBTN_clicked()
     }
 }
 
-void PrefrencesWindow::on_nsBarPageYOffset_valueChanged(int arg1)
+void PreferencesWindow::on_nsBarPageYOffset_valueChanged(int arg1)
 {
     LOADINGCHECK
     CurrentBarPage.OffsetYpx = arg1;
 }
 
-void PrefrencesWindow::on_nsBarLineAddBTN_clicked()
+void PreferencesWindow::on_nsBarLineAddBTN_clicked()
 {
     // WARNING Is it really just this simple?
     QvBarLine line;
@@ -549,7 +548,7 @@ void PrefrencesWindow::on_nsBarLineAddBTN_clicked()
     nsBarLinesList->setCurrentRow(static_cast<int>(CurrentBarPage.Lines.size() - 1));
 }
 
-void PrefrencesWindow::on_nsBarLineDelBTN_clicked()
+void PreferencesWindow::on_nsBarLineDelBTN_clicked()
 {
     if (nsBarLinesList->currentRow() >= 0) {
         RemoveItem(CurrentBarPage.Lines, static_cast<size_t>(nsBarLinesList->currentRow()));
@@ -565,7 +564,7 @@ void PrefrencesWindow::on_nsBarLineDelBTN_clicked()
     }
 }
 
-void PrefrencesWindow::on_nsBarPagesList_currentRowChanged(int currentRow)
+void PreferencesWindow::on_nsBarPagesList_currentRowChanged(int currentRow)
 {
     if (currentRow < 0) return;
 
@@ -590,7 +589,7 @@ void PrefrencesWindow::on_nsBarPagesList_currentRowChanged(int currentRow)
     }
 }
 
-void PrefrencesWindow::on_nsBarLinesList_currentRowChanged(int currentRow)
+void PreferencesWindow::on_nsBarLinesList_currentRowChanged(int currentRow)
 {
     if (currentRow < 0) return;
 
@@ -598,28 +597,28 @@ void PrefrencesWindow::on_nsBarLinesList_currentRowChanged(int currentRow)
     ShowLineParameters(CurrentBarLine);
 }
 
-void PrefrencesWindow::on_fontComboBox_currentFontChanged(const QFont &f)
+void PreferencesWindow::on_fontComboBox_currentFontChanged(const QFont &f)
 {
     LOADINGCHECK
     CurrentBarLine.Family = f.family().toStdString();
     SET_LINE_LIST_TEXT
 }
 
-void PrefrencesWindow::on_nsBarFontBoldCB_stateChanged(int arg1)
+void PreferencesWindow::on_nsBarFontBoldCB_stateChanged(int arg1)
 {
     LOADINGCHECK
     CurrentBarLine.Bold = arg1 == Qt::Checked;
     SET_LINE_LIST_TEXT
 }
 
-void PrefrencesWindow::on_nsBarFontItalicCB_stateChanged(int arg1)
+void PreferencesWindow::on_nsBarFontItalicCB_stateChanged(int arg1)
 {
     LOADINGCHECK
     CurrentBarLine.Italic = arg1 == Qt::Checked;
     SET_LINE_LIST_TEXT
 }
 
-void PrefrencesWindow::on_nsBarFontASB_valueChanged(int arg1)
+void PreferencesWindow::on_nsBarFontASB_valueChanged(int arg1)
 {
     LOADINGCHECK
     CurrentBarLine.ColorA = arg1;
@@ -627,7 +626,7 @@ void PrefrencesWindow::on_nsBarFontASB_valueChanged(int arg1)
     SET_LINE_LIST_TEXT
 }
 
-void PrefrencesWindow::on_nsBarFontRSB_valueChanged(int arg1)
+void PreferencesWindow::on_nsBarFontRSB_valueChanged(int arg1)
 {
     LOADINGCHECK
     CurrentBarLine.ColorR = arg1;
@@ -635,7 +634,7 @@ void PrefrencesWindow::on_nsBarFontRSB_valueChanged(int arg1)
     SET_LINE_LIST_TEXT
 }
 
-void PrefrencesWindow::on_nsBarFontGSB_valueChanged(int arg1)
+void PreferencesWindow::on_nsBarFontGSB_valueChanged(int arg1)
 {
     LOADINGCHECK
     CurrentBarLine.ColorG = arg1;
@@ -643,7 +642,7 @@ void PrefrencesWindow::on_nsBarFontGSB_valueChanged(int arg1)
     SET_LINE_LIST_TEXT
 }
 
-void PrefrencesWindow::on_nsBarFontBSB_valueChanged(int arg1)
+void PreferencesWindow::on_nsBarFontBSB_valueChanged(int arg1)
 {
     LOADINGCHECK
     CurrentBarLine.ColorB = arg1;
@@ -651,14 +650,14 @@ void PrefrencesWindow::on_nsBarFontBSB_valueChanged(int arg1)
     SET_LINE_LIST_TEXT
 }
 
-void PrefrencesWindow::on_nsBarFontSizeSB_valueChanged(double arg1)
+void PreferencesWindow::on_nsBarFontSizeSB_valueChanged(double arg1)
 {
     LOADINGCHECK
     CurrentBarLine.Size = arg1;
     SET_LINE_LIST_TEXT
 }
 
-QString PrefrencesWindow::GetBarLineDescription(QvBarLine barLine)
+QString PreferencesWindow::GetBarLineDescription(QvBarLine barLine)
 {
     QString result = "Empty";
     result = NetSpeedPluginMessages[barLine.ContentType];
@@ -672,7 +671,7 @@ QString PrefrencesWindow::GetBarLineDescription(QvBarLine barLine)
     return result;
 }
 
-void PrefrencesWindow::ShowLineParameters(QvBarLine &barLine)
+void PreferencesWindow::ShowLineParameters(QvBarLine &barLine)
 {
     finishedLoading = false;
 
@@ -701,7 +700,7 @@ void PrefrencesWindow::ShowLineParameters(QvBarLine &barLine)
     nsBarVerticalLayout->setEnabled(true);
 }
 
-void PrefrencesWindow::on_chooseColorBtn_clicked()
+void PreferencesWindow::on_chooseColorBtn_clicked()
 {
     LOADINGCHECK
     QColorDialog d(QColor::fromRgb(CurrentBarLine.ColorR, CurrentBarLine.ColorG, CurrentBarLine.ColorB, CurrentBarLine.ColorA), this);
@@ -714,34 +713,34 @@ void PrefrencesWindow::on_chooseColorBtn_clicked()
     }
 }
 
-void PrefrencesWindow::on_nsBarTagTxt_textEdited(const QString &arg1)
+void PreferencesWindow::on_nsBarTagTxt_textEdited(const QString &arg1)
 {
     LOADINGCHECK
     CurrentBarLine.Message = arg1.toStdString();
     SET_LINE_LIST_TEXT
 }
 
-void PrefrencesWindow::on_nsBarContentCombo_currentIndexChanged(const QString &arg1)
+void PreferencesWindow::on_nsBarContentCombo_currentIndexChanged(const QString &arg1)
 {
     LOADINGCHECK
     CurrentBarLine.ContentType = NetSpeedPluginMessages.key(arg1);
     SET_LINE_LIST_TEXT
 }
 
-void PrefrencesWindow::on_applyNSBarSettingsBtn_clicked()
+void PreferencesWindow::on_applyNSBarSettingsBtn_clicked()
 {
     auto conf = GetGlobalConfig();
     conf.toolBarConfig = CurrentConfig.toolBarConfig;
     SetGlobalConfig(conf);
 }
 
-void PrefrencesWindow::on_themeCombo_currentTextChanged(const QString &arg1)
+void PreferencesWindow::on_themeCombo_currentTextChanged(const QString &arg1)
 {
     LOADINGCHECK
     CurrentConfig.uiConfig.theme = arg1.toStdString();
 }
 
-void PrefrencesWindow::on_darkThemeCB_stateChanged(int arg1)
+void PreferencesWindow::on_darkThemeCB_stateChanged(int arg1)
 {
     LOADINGCHECK
     CurrentConfig.uiConfig.useDarkTheme = arg1 == Qt::Checked;
@@ -757,13 +756,13 @@ void PrefrencesWindow::on_darkThemeCB_stateChanged(int arg1)
 #endif
 }
 
-void PrefrencesWindow::on_darkTrayCB_stateChanged(int arg1)
+void PreferencesWindow::on_darkTrayCB_stateChanged(int arg1)
 {
     LOADINGCHECK
     CurrentConfig.uiConfig.useDarkTrayIcon = arg1 == Qt::Checked;
 }
 
-void PrefrencesWindow::on_enablePACCB_stateChanged(int arg1)
+void PreferencesWindow::on_enablePACCB_stateChanged(int arg1)
 {
     LOADINGCHECK
     NEEDRESTART
@@ -772,7 +771,7 @@ void PrefrencesWindow::on_enablePACCB_stateChanged(int arg1)
     pacGroupBox->setEnabled(enabled);
 }
 
-void PrefrencesWindow::on_pacGoBtn_clicked()
+void PreferencesWindow::on_pacGoBtn_clicked()
 {
     LOADINGCHECK
     QString gfwLocation;
@@ -828,7 +827,7 @@ void PrefrencesWindow::on_pacGoBtn_clicked()
     StringToFile(&fileContent, &privateGFWListFile);
 }
 
-void PrefrencesWindow::on_pacPortSB_valueChanged(int arg1)
+void PreferencesWindow::on_pacPortSB_valueChanged(int arg1)
 {
     LOADINGCHECK
     NEEDRESTART
@@ -836,14 +835,14 @@ void PrefrencesWindow::on_pacPortSB_valueChanged(int arg1)
     //pacAccessPathTxt->setText("http://" + listenIPTxt->text() + ":" + QString::number(arg1) + "/pac");
 }
 
-void PrefrencesWindow::on_setSysProxyCB_stateChanged(int arg1)
+void PreferencesWindow::on_setSysProxyCB_stateChanged(int arg1)
 {
     LOADINGCHECK
     NEEDRESTART
     CurrentConfig.inboundConfig.setSystemProxy = arg1 == Qt::Checked;
 }
 
-void PrefrencesWindow::on_pacProxyCB_currentIndexChanged(int index)
+void PreferencesWindow::on_pacProxyCB_currentIndexChanged(int index)
 {
     LOADINGCHECK
     NEEDRESTART
@@ -852,20 +851,20 @@ void PrefrencesWindow::on_pacProxyCB_currentIndexChanged(int index)
     CurrentConfig.inboundConfig.pacConfig.useSocksProxy = index == 1;
 }
 
-void PrefrencesWindow::on_pushButton_clicked()
+void PreferencesWindow::on_pushButton_clicked()
 {
     LOADINGCHECK
     QDesktopServices::openUrl(QUrl::fromUserInput(QV2RAY_RULES_DIR));
 }
 
-void PrefrencesWindow::on_pacProxyTxt_textEdited(const QString &arg1)
+void PreferencesWindow::on_pacProxyTxt_textEdited(const QString &arg1)
 {
     LOADINGCHECK
     NEEDRESTART
     CurrentConfig.inboundConfig.pacConfig.localIP = arg1.toStdString();
 }
 
-void PrefrencesWindow::on_autoStartSubsCombo_currentIndexChanged(const QString &arg1)
+void PreferencesWindow::on_autoStartSubsCombo_currentIndexChanged(const QString &arg1)
 {
     LOADINGCHECK
     CurrentConfig.autoStartConfig.subscriptionName = arg1.toStdString();
@@ -873,14 +872,14 @@ void PrefrencesWindow::on_autoStartSubsCombo_currentIndexChanged(const QString &
 
     if (arg1.isEmpty()) {
         autoStartConnCombo->addItem("");
-        autoStartConnCombo->addItems(ConvertQStringList(QList<string>::fromStdList(CurrentConfig.configs)));
+        autoStartConnCombo->addItems(ConvertQStringList(toQList(CurrentConfig.configs)));
     } else {
         auto list = GetSubscriptionConnection(arg1.toStdString());
         autoStartConnCombo->addItems(list.keys());
     }
 }
 
-void PrefrencesWindow::on_autoStartConnCombo_currentIndexChanged(const QString &arg1)
+void PreferencesWindow::on_autoStartConnCombo_currentIndexChanged(const QString &arg1)
 {
     LOADINGCHECK
     CurrentConfig.autoStartConfig.connectionName = arg1.toStdString();
diff --git a/src/ui/w_PrefrencesWindow.hpp b/src/ui/w_PreferencesWindow.hpp
similarity index 94%
rename from src/ui/w_PrefrencesWindow.hpp
rename to src/ui/w_PreferencesWindow.hpp
index f3ee7a7b..35210dec 100644
--- a/src/ui/w_PrefrencesWindow.hpp
+++ b/src/ui/w_PreferencesWindow.hpp
@@ -2,16 +2,16 @@
 #define HVCONF_H
 
 #include <QDialog>
-#include <ui_w_PrefrencesWindow.h>
+#include <ui_w_PreferencesWindow.h>
 #include "Qv2rayBase.hpp"
 
-class PrefrencesWindow : public QDialog, private Ui::PrefrencesWindow
+class PreferencesWindow : public QDialog, private Ui::PreferencesWindow
 {
         Q_OBJECT
 
     public:
-        explicit PrefrencesWindow(QWidget *parent = nullptr);
-        ~PrefrencesWindow();
+        explicit PreferencesWindow(QWidget *parent = nullptr);
+        ~PreferencesWindow();
     signals:
         void s_reload_config(bool need_restart);
 
@@ -147,6 +147,5 @@ class PrefrencesWindow : public QDialog, private Ui::PrefrencesWindow
         bool IsConnectionPropertyChanged = false;
         bool finishedLoading = false;
         Qv2rayConfig CurrentConfig;
-        Ui::PrefrencesWindow *ui;
 };
 #endif // HVCONF_H
diff --git a/src/ui/w_PrefrencesWindow.ui b/src/ui/w_PreferencesWindow.ui
similarity index 99%
rename from src/ui/w_PrefrencesWindow.ui
rename to src/ui/w_PreferencesWindow.ui
index 088f19a8..e5df448c 100644
--- a/src/ui/w_PrefrencesWindow.ui
+++ b/src/ui/w_PreferencesWindow.ui
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <ui version="4.0">
- <class>PrefrencesWindow</class>
- <widget class="QDialog" name="PrefrencesWindow">
+ <class>PreferencesWindow</class>
+ <widget class="QDialog" name="PreferencesWindow">
   <property name="windowModality">
    <enum>Qt::ApplicationModal</enum>
   </property>
@@ -20,7 +20,7 @@
    </size>
   </property>
   <property name="windowTitle">
-   <string>Prefrences</string>
+   <string>Preferences</string>
   </property>
   <property name="modal">
    <bool>true</bool>
@@ -1678,7 +1678,7 @@ p, li { white-space: pre-wrap; }
   <connection>
    <sender>buttonBox</sender>
    <signal>accepted()</signal>
-   <receiver>PrefrencesWindow</receiver>
+   <receiver>PreferencesWindow</receiver>
    <slot>accept()</slot>
    <hints>
     <hint type="sourcelabel">
@@ -1694,7 +1694,7 @@ p, li { white-space: pre-wrap; }
   <connection>
    <sender>buttonBox</sender>
    <signal>rejected()</signal>
-   <receiver>PrefrencesWindow</receiver>
+   <receiver>PreferencesWindow</receiver>
    <slot>reject()</slot>
    <hints>
     <hint type="sourcelabel">