diff --git a/src/SFML/Window/Win32/WindowImplWin32.cpp b/src/SFML/Window/Win32/WindowImplWin32.cpp
index bb3ef8480..49651c233 100755
--- a/src/SFML/Window/Win32/WindowImplWin32.cpp
+++ b/src/SFML/Window/Win32/WindowImplWin32.cpp
@@ -127,7 +127,7 @@ namespace
     DWORD translateStyle(sf::Uint32 style)
     {
         // Choose the window style according to the Style parameter
-        DWORD win32Style = WS_VISIBLE;
+        DWORD win32Style = 0;
         if (style == sf::Style::None)
         {
             win32Style |= WS_POPUP;
@@ -593,7 +593,6 @@ void WindowImplWin32::switchToWindowed()
 
     SetWindowPos(m_handle, HWND_TOP, left, top, width, height, SWP_FRAMECHANGED);
 
-
     fullscreenWindow = NULL;
 }
 
diff --git a/src/SFML/Window/Window.cpp b/src/SFML/Window/Window.cpp
index 8cf5fa829..afb1d13e9 100644
--- a/src/SFML/Window/Window.cpp
+++ b/src/SFML/Window/Window.cpp
@@ -379,7 +379,7 @@ void Window::setState(State state)
         if (state == State::Windowed)
         {
             if (this == fullscreenWindow)
-                fullscreenWindow == NULL;
+                fullscreenWindow = NULL;
         }
 
         if (state == State::Fullscreen)