diff --git a/INSTALL.md b/INSTALL.md
index 14a1964e8..ef9c74e87 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -96,7 +96,7 @@ First of all install the dependencies of Tox Core.
 
 Arch Linux:
 ```bash
-sudo pacman -S --needed opus vpx
+sudo pacman -S --needed opus libvpx
 ```
 
 Debian / Ubuntu:
@@ -221,6 +221,11 @@ Download the MinGW installer for Windows from [sourceforge.net](http://sourcefor
 Make sure to install MSYS (a set of Unix tools for Windows).
 The following steps assume that MinGW is installed at "C:\MinGW". If you decided to choose another location, replace corresponding parts.
 
+###qrencode
+Download the qrencode from http://fukuchi.org/works/qrencode/ or direct from https://code.google.com/p/qrencode-win32/source/checkout ,
+build project "..\qrencode-win32\vc8\qrcodelib\", you must copy files from release in: "qrcodelib.dll" to \qTox\libs\bin\qrcodelib.dll";
+"qrencode.h" to \qTox\libs\include\qrencode.h"; "qrcodelib.lib" to "\qTox\libs\lib\qrencode.lib" with rename!!!
+
 ###Setting up Path
 
 Add MinGW/MSYS/CMake binaries to the system path to make them globally accessible. 
@@ -232,7 +237,7 @@ The very first semicolon must only be added if it is missing. CMake may be added
 
 ###Cloning the Repository
 
-Clone the repository (https://github.com/tux3/qTox.git) with your preferred  Git client. [SmartGit](http://www.syntevo.com/smartgit/) is very nice for this task.
+Clone the repository (https://github.com/tux3/qTox.git) with your preferred  Git client. [SmartGit](http://www.syntevo.com/smartgit/) is very nice for this task (you may need to add the path to the git.exe system variable Path).
 The following steps assume that you cloned the repository at "C:\qTox". If you decided to choose another location, replace corresponding parts.
 
 ### Getting dependencies
diff --git a/simple_make.sh b/simple_make.sh
index c845dc26f..555aae1f8 100755
--- a/simple_make.sh
+++ b/simple_make.sh
@@ -2,7 +2,7 @@
 
 if which apt-get; then
     sudo apt-get install build-essential qt5-qmake qt5-default libopenal-dev libopencv-dev \
-                         libtool autotools-dev automake checkinstall check libopus-dev libvpx-dev qttools5-dev-tools qtchooser libxss-dev libqt5svg5* qrencode
+                         libtool autotools-dev automake checkinstall check libopus-dev libvpx-dev qttools5-dev-tools qtchooser libxss-dev libqt5svg5* libqrencode-dev
 elif which pacman; then
     sudo pacman -S --needed base-devel qt5 opencv openal opus libvpx libxss qt5-svg qrencode
 elif which yum; then
diff --git a/src/misc/qrwidget.cpp b/src/misc/qrwidget.cpp
index 045426858..52069124c 100644
--- a/src/misc/qrwidget.cpp
+++ b/src/misc/qrwidget.cpp
@@ -4,7 +4,12 @@
 #include <QBuffer>
 #include <QImage>
 #include <qrencode.h>
-#include <sys/errno.h>
+
+#ifdef Q_OS_WIN32
+    #include <errno.h>
+#else
+    #include <sys/errno.h>
+#endif
 
 QRWidget::QRWidget(QWidget *parent) : QWidget(parent), data("0")
 //Note: The encoding fails with empty string so I just default to something else.
diff --git a/src/widget/widget.cpp b/src/widget/widget.cpp
index cd6a9e82f..5b9a415a3 100644
--- a/src/widget/widget.cpp
+++ b/src/widget/widget.cpp
@@ -84,6 +84,7 @@ Widget::Widget(QWidget *parent)
       eventFlag(false),
       eventIcon(false)
 {   
+    installEventFilter(this);
     translator = new QTranslator;
     setTranslation();
 }
@@ -222,6 +223,23 @@ void Widget::setTranslation()
     QCoreApplication::installTranslator(translator);
 }
 
+bool Widget::eventFilter(QObject *obj, QEvent *event)
+{
+    if(event->type() == QEvent::WindowStateChange && obj != NULL)
+    {
+           QWindowStateChangeEvent * ce = static_cast<QWindowStateChangeEvent*>(event);
+           if (windowState() & Qt::WindowMinimized)
+           {
+                if (ce->oldState() & Qt::WindowMaximized)
+                    wasMaximized = true;
+                else
+                    wasMaximized = false;
+           }
+    }
+    event->accept();
+    return false;
+}
+
 void Widget::updateIcons()
 {
     if (!icon)
@@ -433,16 +451,23 @@ void Widget::onIconClick(QSystemTrayIcon::ActivationReason reason)
             {
                 show();
                 activateWindow();
-                showNormal();
+                if (wasMaximized)
+                    showMaximized();
+                else
+                    showNormal();
             }
             else if (isMinimized())
             {
                 forceShow();
                 activateWindow();
-                showNormal();
+                if (wasMaximized)
+                    showMaximized();
+                else
+                    showNormal();
             }
             else
             {
+                wasMaximized = isMaximized();
                 if (Settings::getInstance().getMinimizeToTray())
                     hide();
                 else
@@ -452,6 +477,7 @@ void Widget::onIconClick(QSystemTrayIcon::ActivationReason reason)
             break;
         }
         case QSystemTrayIcon::MiddleClick:
+            wasMaximized = isMaximized();
             if (Settings::getInstance().getMinimizeToTray())
                 hide();
             else
diff --git a/src/widget/widget.h b/src/widget/widget.h
index ac717e299..001b55f2c 100644
--- a/src/widget/widget.h
+++ b/src/widget/widget.h
@@ -51,6 +51,9 @@ class Widget : public QMainWindow
 {
     Q_OBJECT
 
+protected:
+    bool eventFilter(QObject *obj, QEvent *event);
+
 public:
     explicit Widget(QWidget *parent = 0);
     void init();
@@ -181,6 +184,7 @@ private:
     QRegExp nameMention, sanitizedNameMention;
     bool eventFlag;
     bool eventIcon;
+    bool wasMaximized = false;
 };
 
 bool toxActivateEventHandler(const QByteArray& data);