diff --git a/Minecraft.Client/Windows64/Windows64_Minecraft.cpp b/Minecraft.Client/Windows64/Windows64_Minecraft.cpp
index 37b81081..36ce3ff5 100644
--- a/Minecraft.Client/Windows64/Windows64_Minecraft.cpp
+++ b/Minecraft.Client/Windows64/Windows64_Minecraft.cpp
@@ -72,16 +72,10 @@ static bool g_bResizeReady = false;
 char g_Win64Username[17] = { 0 };
 wchar_t g_Win64UsernameW[17] = { 0 };
 
+// Fullscreen toggle state
+static bool g_isFullscreen = false;
 static WINDOWPLACEMENT g_wpPrev = { sizeof(g_wpPrev) };
 
-// ---------- Persistent options (options.txt next to exe) ----------
-static void GetOptionsFilePath(char *out, size_t outSize)
-{
-	GetModuleFileNameA(nullptr, out, static_cast<DWORD>(outSize));
-	char *p = strrchr(out, '\\');
-	if (p) *(p + 1) = '\0';
-	strncat_s(out, outSize, "options.txt", _TRUNCATE);
-}
 // ------------------------------------------------------------------
 
 void DefineActions(void)
@@ -987,33 +981,32 @@ postReset:
 //--------------------------------------------------------------------------------------
 // Toggle borderless fullscreen
 //--------------------------------------------------------------------------------------
-void ToggleFullscreen()
+void EnableFullscreen()
 {
 	const DWORD dwStyle = GetWindowLong(g_hWnd, GWL_STYLE);
 
-	const int primaryPad = ProfileManager.GetPrimaryPad();
-	const unsigned char fullscreen = app.GetGameSettings(primaryPad, eGameSetting_Fullscreen);
-	if (!fullscreen)
+	MONITORINFO mi = {};
+	mi.cbSize = sizeof(mi);
+	if (GetWindowPlacement(g_hWnd, &g_wpPrev) && GetMonitorInfo(MonitorFromWindow(g_hWnd, MONITOR_DEFAULTTOPRIMARY), &mi))
 	{
-		MONITORINFO mi = {};
-		mi.cbSize = sizeof(mi);
-		if (GetWindowPlacement(g_hWnd, &g_wpPrev) && GetMonitorInfo(MonitorFromWindow(g_hWnd, MONITOR_DEFAULTTOPRIMARY), &mi))
-		{
-			SetWindowLong(g_hWnd, GWL_STYLE, dwStyle & ~WS_OVERLAPPEDWINDOW);
-			SetWindowPos(g_hWnd, HWND_TOP, mi.rcMonitor.left, mi.rcMonitor.top, mi.rcMonitor.right - mi.rcMonitor.left, mi.rcMonitor.bottom - mi.rcMonitor.top, SWP_NOOWNERZORDER | SWP_FRAMECHANGED);
-		}
-	}
-	else
-	{
-		SetWindowLong(g_hWnd, GWL_STYLE, dwStyle | WS_OVERLAPPEDWINDOW);
-		SetWindowPlacement(g_hWnd, &g_wpPrev);
-		SetWindowPos(g_hWnd, nullptr, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER | SWP_NOOWNERZORDER | SWP_FRAMECHANGED);
+		SetWindowLong(g_hWnd, GWL_STYLE, dwStyle & ~WS_OVERLAPPEDWINDOW);
+		SetWindowPos(g_hWnd, HWND_TOP, mi.rcMonitor.left, mi.rcMonitor.top, mi.rcMonitor.right - mi.rcMonitor.left, mi.rcMonitor.bottom - mi.rcMonitor.top, SWP_NOOWNERZORDER | SWP_FRAMECHANGED);
 	}
 
-	app.SetGameSettings(primaryPad, eGameSetting_Fullscreen, fullscreen ? 0 : 1);
+	g_isFullscreen = true;
+}
 
-	if (g_KBMInput.IsWindowFocused())
-		g_KBMInput.SetWindowFocused(true);
+void DisableFullscreen()
+{
+	const DWORD dwStyle = GetWindowLong(g_hWnd, GWL_STYLE);
+
+	MONITORINFO mi = {};
+	mi.cbSize = sizeof(mi);
+	SetWindowLong(g_hWnd, GWL_STYLE, dwStyle | WS_OVERLAPPEDWINDOW);
+	SetWindowPlacement(g_hWnd, &g_wpPrev);
+	SetWindowPos(g_hWnd, nullptr, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER | SWP_NOOWNERZORDER | SWP_FRAMECHANGED);
+
+	g_isFullscreen = false;
 }
 
 //--------------------------------------------------------------------------------------
@@ -1270,10 +1263,19 @@ int APIENTRY _tWinMain(_In_ HINSTANCE hInstance,
 		return 0;
 	}
 
-	// Restore fullscreen state from previous session
-	if (app.GetGameSettings(ProfileManager.GetPrimaryPad(), eGameSetting_Fullscreen))
+	// Fullscreen state
+	if (app.GetGameStarted())
 	{
-		ToggleFullscreen();
+		const int primaryPad = ProfileManager.GetPrimaryPad();
+		const unsigned char fullscreen = app.GetGameSettings(primaryPad, eGameSetting_Fullscreen);
+		if (fullscreen && !g_isFullscreen)
+		{
+			EnableFullscreen();
+		}
+		if (!fullscreen && g_isFullscreen)
+		{
+			DisableFullscreen();
+		}
 	}
 
 #if 0
@@ -1654,7 +1656,9 @@ int APIENTRY _tWinMain(_In_ HINSTANCE hInstance,
 		// toggle fullscreen
 		if (g_KBMInput.IsKeyPressed(KeyboardMouseInput::KEY_FULLSCREEN))
 		{
-			ToggleFullscreen();
+			const int primaryPad = ProfileManager.GetPrimaryPad();
+			const unsigned char fullscreen = app.GetGameSettings(primaryPad, eGameSetting_Fullscreen);
+			app.SetGameSettings(primaryPad, eGameSetting_Fullscreen, fullscreen ? 0 : 1);
 		}
 
 		// Open chat