diff --git a/data/images/wfsplash.png b/data/images/wfsplash.png
deleted file mode 100644
index a077dee3..00000000
Binary files a/data/images/wfsplash.png and /dev/null differ
diff --git a/out/boot.dol b/out/boot.dol
index 7f2eebac..2602e405 100644
Binary files a/out/boot.dol and b/out/boot.dol differ
diff --git a/source/channel/nand_save.cpp b/source/channel/nand_save.cpp
index be88c27a..61a7c97d 100644
--- a/source/channel/nand_save.cpp
+++ b/source/channel/nand_save.cpp
@@ -35,6 +35,7 @@ u8 cur_ios = 0;
 #define BANNER_PATH		"/title/00010000/57465346/data/banner.bin"
 #define IOS_SAVE_PATH	"/title/00010000/57465346/data/ios"
 #define PORT_SAVE_PATH	"/title/00010000/57465346/data/port"
+#define SD_SAVE_PATH	"/title/00010000/57465346/data/sdonly"
 
 NandSave::NandSave()
 {
@@ -62,7 +63,7 @@ bool NandSave::CheckSave()
 	u32 banner_bin_size = 0;
 	const u8 *banner_bin = NULL;
 	u32 entries = 0;
-	/* May our banner already exist */
+	/* Maybe our banner already exist */
 	memset(&ISFS_Path, 0, ISFS_MAXPATH);
 	strcpy(ISFS_Path, BANNER_PATH);
 	fd = ISFS_Open(ISFS_Path, ISFS_OPEN_READ);
@@ -72,6 +73,9 @@ bool NandSave::CheckSave()
 		gprintf("Found WiiFlow Save\n");
 		goto done;
 	}
+	// save_bin only contains the tik.bin, tmd.bin, and banner.bin
+	// tik.bin and tmd.bin are used to install "/title/00010000/57465346/data/banner.bin"
+	// "/title/00010000/57465346/data/ios and port" are not written until you change them in startup settings menu.
 	/* extract our archive */
 	u8_bin = DecompressCopy(save_bin, save_bin_size, &u8_bin_size);
 	if(u8_bin == NULL || u8_bin_size == 0)
@@ -164,6 +168,12 @@ void NandSave::LoadSettings()
 
 	u32 size = 0;
 	memset(&ISFS_Path, 0, ISFS_MAXPATH);
+	// on very first boot (no save file exist yet)
+	// "/title/00010000/57465346/data/ios"
+	// "/title/00010000/57465346/data/port"
+	// will not exist. wiiflow will simply use useMainIOS and mainIOS defined in main.cpp
+	// they are only created when you change settings in the startup settings menu.
+
 	strcpy(ISFS_Path, IOS_SAVE_PATH);
 	ios_settings_t *file = (ios_settings_t*)ISFS_GetFile(ISFS_Path, &size, -1);
 	if(file != NULL && size == sizeof(ios_settings_t))
@@ -187,6 +197,16 @@ void NandSave::LoadSettings()
 	}
 	if(port != NULL)
 		MEM2_free(port);
+		
+	strcpy(ISFS_Path, SD_SAVE_PATH);
+	u8 *sdonly = ISFS_GetFile(ISFS_Path, &size, -1);
+	if(sdonly != NULL && size == sizeof(u8))
+	{
+		gprintf("Using SD Only Settings from wiiflow save\n");
+		sdOnly = ((sdonly[0] & 1) == 1);
+	}
+	if(sdonly != NULL)
+		MEM2_free(sdonly);
 }
 
 void NandSave::SaveIOS()
@@ -204,10 +224,19 @@ void NandSave::SavePort(u8 port)
 {
 	if(loaded == false)
 		return;
-	gprintf("Saving Port Settings to wiiflow save\n");
+	gprintf("Saving Port Setting to wiiflow save\n");
 	WriteFile(PORT_SAVE_PATH, &port, sizeof(port));
 }
 
+void NandSave::SaveSDOnly(bool sd_only)
+{
+	if(loaded == false)
+		return;
+	gprintf("Saving SD Only Setting to wiiflow save\n");
+	u8 sdonly = sd_only ? 1 : 0;
+	WriteFile(SD_SAVE_PATH, &sdonly, sizeof(sdonly));
+}
+
 void NandSave::WriteFile(const char *file_name, u8 *content, u32 size)
 {
 	memset(&ISFS_Path, 0, ISFS_MAXPATH);
diff --git a/source/channel/nand_save.hpp b/source/channel/nand_save.hpp
index d67f1039..c12a7a7c 100644
--- a/source/channel/nand_save.hpp
+++ b/source/channel/nand_save.hpp
@@ -33,6 +33,7 @@ public:
 	void LoadSettings();
 	void SaveIOS();
 	void SavePort(u8 port);
+	void SaveSDOnly(bool sd_only);
 private:
 	void WriteFile(const char *file_name, u8 *content, u32 size);
 	s32 fd;
diff --git a/source/gui/video.cpp b/source/gui/video.cpp
index e575defa..458dfba5 100644
--- a/source/gui/video.cpp
+++ b/source/gui/video.cpp
@@ -475,8 +475,6 @@ void CVideo::render(void)
 
 /* wait animation control */
 
-extern const u8 wfsplash_png[];
-
 extern const u8 wait_01_png[];
 extern const u8 wait_02_png[];
 extern const u8 wait_03_png[];
@@ -691,17 +689,6 @@ void CVideo::waitMessage(const TexData &tex)
 	GX_End();
 }
 
-/* draw and render startup splash screen */
-void CVideo::startImage(void)
-{
-	TexData splashTex;
-	TexHandle.fromPNG(splashTex, wfsplash_png);
-
-	waitMessage(splashTex);
-	render();
-	TexHandle.Cleanup(splashTex);
-}
-
 /* save screenshot */
 s32 CVideo::TakeScreenshot(const char *path)
 {
diff --git a/source/gui/video.hpp b/source/gui/video.hpp
index 532a5646..7ea95e71 100644
--- a/source/gui/video.hpp
+++ b/source/gui/video.hpp
@@ -72,7 +72,6 @@ public:
 	int stencilVal(int x, int y);
 	void setCustomWaitImgs(const char *path, bool loop);
 	void hideWaitMessage();
-	void startImage(void);
 	void waitMessage(float delay);
 	void waitMessage(const vector<TexData> &tex, float delay);
 	void waitMessage(const TexData &tex);
diff --git a/source/loader/sys.h b/source/loader/sys.h
index 62bdc2ea..bee06f1c 100644
--- a/source/loader/sys.h
+++ b/source/loader/sys.h
@@ -51,6 +51,7 @@ bool IsOnWiiU(void);
 extern void __exception_setreload(int t);
 extern int mainIOS;
 extern bool useMainIOS;
+extern bool sdOnly;
 extern bool isWiiVC;
 extern volatile bool NANDemuView;
 extern volatile bool networkInit;
diff --git a/source/main.cpp b/source/main.cpp
index b332d217..6bba26ce 100644
--- a/source/main.cpp
+++ b/source/main.cpp
@@ -24,62 +24,10 @@
 
 bool isWiiVC = false;
 bool useMainIOS = true;
+bool sdOnly = false;
 volatile bool NANDemuView = false;
 volatile bool networkInit = false;
 
-/* quick check if we will be using a USB device. */
-/* if not then we can skip the 20 second cycle trying to connect a USB device. */
-/* this is nice for SD only users */
-bool isUsingUSB() {
-	if(isWiiVC)
-		return false;
-	/* First check if the app path exists on the SD card, if not then we're using USB */
-	struct stat dummy;
-	string appPath = fmt("%s:/%s", DeviceName[SD], APPS_DIR);
-	if(DeviceHandle.IsInserted(SD) && DeviceHandle.GetFSType(SD) != PART_FS_WBFS && stat(appPath.c_str(), &dummy) != 0)
-	{
-		// No app path exists on SD card, so assuming we're using USB.
-		return true;
-	}
-	
-	/* Check that the config file exists, or we can't do the following checks */
-	string configPath = fmt("%s/" CFG_FILENAME, appPath.c_str());
-	if(stat(configPath.c_str(), &dummy) != 0)
-	{
-		// The app path is on SD but no config file exists, so assuming we might need USB.
-		return true;
-	}
-	
-	/* Load the config file */
-	Config m_cfg;// = new Config();
-	if(!m_cfg.load(configPath.c_str())) 
-	{
-		// The app path is on SD and a config file exists, but we can't load it, so assuming we might need USB.
-		return true;
-	}
-	
-	/* If any of the sections have partition set > 0, we're on USB */
-	const char *domains[] = {WII_DOMAIN, GC_DOMAIN, CHANNEL_DOMAIN, PLUGIN_DOMAIN, HOMEBREW_DOMAIN};
-	for(int i = 0; i < 5; i++)
-	{
-		if(!m_cfg.getBool(domains[i], "disable", false) && m_cfg.getInt(domains[i], "partition", SD) != SD)
-		{
-			// a domain is enabled and partition is not SD, so assuming we're using USB.
-			return true;
-		}
-	}
-	
-	/* if sd_only is false, then we're using USB */
-	if(!m_cfg.getBool("general", "sd_only", true))
-	{
-		// sd_only is false, so assuming we're using USB.
-		return true;
-	}
-	
-	gprintf("using SD only, no need for USB mounting.\n");
-	return false;
-}
-
 int main(int argc, char **argv)
 {
 	MEM_init(); //Inits both mem1lo and mem2
@@ -93,7 +41,6 @@ int main(int argc, char **argv)
 	#endif
 
 	char *gameid = NULL;
-	bool showFlashImg = true;
 	bool wait_loop = false;
 	char wait_dir[256];
 	memset(&wait_dir, 0, sizeof(wait_dir));
@@ -114,8 +61,6 @@ int main(int argc, char **argv)
 		}
 		else if(strcasestr(argv[i], "Waitloop") != NULL)
 			wait_loop = true;
-		else if(strcasestr(argv[i], "noflash") != NULL)
-			showFlashImg = false;
 		else if(strlen(argv[i]) == 6)
 		{
 			gameid = argv[i];
@@ -129,9 +74,7 @@ int main(int argc, char **argv)
 	}
 	/* Init video */
 	m_vid.init();
-	if(showFlashImg && gameid == NULL)// dont show if autobooting a wii game.
-		m_vid.startImage();
-		
+
 	/* check if WiiVC */
 	WiiDRC_Init();
 	isWiiVC = WiiDRC_Inited();
@@ -196,8 +139,8 @@ int main(int argc, char **argv)
 	DeviceHandle.MountSD();// mount SD before calling isUsingUSB() duh!	
 
 	/* mount USB if needed */
-	DeviceHandle.SetMountUSB(isUsingUSB());
-	bool usb_mounted = DeviceHandle.MountAllUSB();// only mounts any USB if isUsingUSB()
+	DeviceHandle.SetMountUSB(!sdOnly && !isWiiVC);
+	bool usb_mounted = DeviceHandle.MountAllUSB();// only mounts any USB if !sdOnly
 	
 	/* init wait images and show wait animation */
 	if(gameid == NULL)// dont show if autobooting a wii game.
diff --git a/source/menu/menu.cpp b/source/menu/menu.cpp
index 9ce60ae0..38b20300 100644
--- a/source/menu/menu.cpp
+++ b/source/menu/menu.cpp
@@ -187,7 +187,9 @@ bool CMenu::init(bool usb_mounted)
 	getProxyInfo();
 	
 	/* Set SD only to off if any usb device is attached */
-	m_cfg.getBool("GENERAL", "sd_only", usb_mounted ? false : true);// will only set it if this doesn't already exist - very first boot up
+	bool cfg_sdonly = m_cfg.getBool("GENERAL", "sd_only", usb_mounted ? false : true);// will only set it if this doesn't already exist - very first boot up
+	if(cfg_sdonly != sdOnly)// done for backwards compatibility with older wiiflow lite's
+		InternalSave.SaveSDOnly(cfg_sdonly);
 
 	/* set default wii games partition in case this is the first boot */
 	int wp = m_cfg.getInt(WII_DOMAIN, "partition", -1);
diff --git a/source/menu/menu_boot.cpp b/source/menu/menu_boot.cpp
index ffe65566..280b9acd 100644
--- a/source/menu/menu_boot.cpp
+++ b/source/menu/menu_boot.cpp
@@ -87,6 +87,7 @@ void CMenu::_Boot(void)
 	bool prev_load = cur_load;
 	u8 prev_ios = cur_ios;
 	bool prev_sd = m_cfg.getBool("GENERAL", "sd_only");
+	bool cur_sd = prev_sd;
 	SetupInput();
 	_showBoot();
 
@@ -137,18 +138,22 @@ void CMenu::_Boot(void)
 			}
 			else if (m_btnMgr.selected(m_bootBtnSDOnly))
 			{
-				m_cfg.setBool("GENERAL", "sd_only", !m_cfg.getBool("GENERAL", "sd_only"));
-				m_btnMgr.setText(m_bootBtnSDOnly, m_cfg.getBool("GENERAL", "sd_only") ?  _t("yes", L"Yes") : _t("no", L"No"));
+				cur_sd = !cur_sd;
+				m_btnMgr.setText(m_bootBtnSDOnly, cur_sd ?  _t("yes", L"Yes") : _t("no", L"No"));
 			}
 		}
 	}
+	if(cur_sd != prev_sd)
+	{
+		InternalSave.SaveSDOnly(cur_sd);
+		m_cfg.setBool("GENERAL", "sd_only", cur_sd);// backwards compatibity
+	}
 	if(prev_load != cur_load || prev_ios != cur_ios)
 		InternalSave.SaveIOS();
 	if(set_port != currentPort)
 		InternalSave.SavePort(set_port);
 	_hideBoot();
 
-	bool cur_sd = m_cfg.getBool("GENERAL", "sd_only");
 	if(prev_load != cur_load || prev_ios != cur_ios || set_port != currentPort || prev_sd != cur_sd)
 	{
 		error(_t("errboot8", L"Press 'A' to reload WiiFlow"));