diff --git a/src/app/dialogs/mainwindow.cpp b/src/app/dialogs/mainwindow.cpp
index 4bf6d927..a0bfb478 100644
--- a/src/app/dialogs/mainwindow.cpp
+++ b/src/app/dialogs/mainwindow.cpp
@@ -41,7 +41,7 @@ MainWin::MainWin(QWidget *parent)
     LOG(DEBUG) << "Current ratio width:" << wRatio;
     LOG(DEBUG) << "Current ratio height:" << hRatio;
 
-    float minimumRatioW = 0.5;
+    float minimumRatioW = 0.6;
     float minimumRatioH = 0.7;
 
     if (wRatio < minimumRatioW
@@ -52,8 +52,10 @@ MainWin::MainWin(QWidget *parent)
                     (int)(scr.height() * minimumRatioH));
     } else if (hRatio > 1 || wRatio > 1) {
         LOG(DEBUG) << "Ratio > 1.0. Resize main window.";
+        setMinimumSize((int)(scr.width() * 0.6),
+                       (int)(scr.height() * 0.6));
         setGeometry(geometry().x(), geometry().y(),
-                    (int)(scr.width() * 0.9),
+                    (int)(scr.width() * 0.8),
                     (int)(scr.height() * 0.8));
     }
     move(scr.center() - rect().center());
diff --git a/src/main.cpp b/src/main.cpp
index 62457dce..078fca51 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -13,6 +13,10 @@
 
 int main(int argc, char *argv[])
 {       
+#ifdef Q_OS_WIN
+    QGuiApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
+#endif
+
     QApplication a(argc, argv);
 
 #ifndef QT_DEBUG