diff --git a/include/configs/proxy/CustomBean.hpp b/include/configs/proxy/CustomBean.hpp
index 24db72d..1670ae1 100644
--- a/include/configs/proxy/CustomBean.hpp
+++ b/include/configs/proxy/CustomBean.hpp
@@ -24,7 +24,7 @@ namespace NekoGui_fmt {
         QString DisplayType() override {
             if (core == "internal") {
                 auto obj = QString2QJsonObject(config_simple);
-                return obj[IS_NEKO_BOX ? "type" : "protocol"].toString();
+                return obj["type"].toString();
             } else if (core == "internal-full") {
                 return software_core_name + " config";
             }
diff --git a/include/global/NekoGui.hpp b/include/global/NekoGui.hpp
index 9fd53be..3697148 100644
--- a/include/global/NekoGui.hpp
+++ b/include/global/NekoGui.hpp
@@ -8,8 +8,6 @@
 // Switch core support
 
 namespace NekoGui {
-    inline int coreType = CoreType::SING_BOX;
-
     QString FindCoreAsset(const QString &name);
 
     QString FindNekoBoxCoreRealPath();
@@ -21,7 +19,6 @@ namespace NekoGui {
     bool NeedGeoAssets();
 } // namespace NekoGui
 
-#define IS_NEKO_BOX (NekoGui::coreType == NekoGui::CoreType::SING_BOX)
 #define ROUTES_PREFIX_NAME QString("route_profiles")
 #define ROUTES_PREFIX QString(ROUTES_PREFIX_NAME + "/")
 #define RULE_SETS_DIR QString("rule_sets")
diff --git a/src/main.cpp b/src/main.cpp
index 20ce278..b7ed53f 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -139,22 +139,6 @@ int main(int argc, char* argv[]) {
         QIcon::setThemeName("breeze");
     }
 
-    // Load coreType
-    auto coreLoaded = ReadFileText("groups/coreType");
-    if (coreLoaded.isEmpty()) {
-        NekoGui::coreType = -1;
-        loadTranslate(QLocale().name());
-        NekoGui::coreType = NekoGui::CoreType::SING_BOX;
-        QDir().mkdir("groups");
-        QFile file;
-        file.setFileName("groups/coreType");
-        file.open(QIODevice::ReadWrite | QIODevice::Truncate);
-        file.write(Int2String(NekoGui::coreType).toUtf8());
-        file.close();
-    } else {
-        NekoGui::coreType = coreLoaded.toInt();
-    }
-
     // Dir
     QDir dir;
     bool dir_success = true;
diff --git a/src/ui/mainwindow.cpp b/src/ui/mainwindow.cpp
index 733949c..86fc0d6 100644
--- a/src/ui/mainwindow.cpp
+++ b/src/ui/mainwindow.cpp
@@ -141,9 +141,17 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWi
     software_name = "Nekoray";
     software_core_name = "sing-box";
     //
-    if (QDir("dashboard").count() == 0) {
-        QDir().mkdir("dashboard");
-        QFile::copy(":/neko/dashboard-notice.html", "dashboard/index.html");
+    if (auto dashDir = QDir("dashboard"); !dashDir.exists("dashboard") && QDir().mkdir("dashboard")) {
+        if (auto dashFile = QFile(":/neko/dashboard-notice.html"); dashFile.exists() && dashFile.open(QIODevice::ReadOnly))
+        {
+            auto data = dashFile.readAll();
+            if (auto dest = QFile("dashboard/index.html"); dest.open(QIODevice::Truncate | QIODevice::WriteOnly))
+            {
+                dest.write(data);
+                dest.close();
+            }
+            dashFile.close();
+        }
     }
 
     // top bar