diff --git a/common/include/Utilities/TraceLog.h b/common/include/Utilities/TraceLog.h
index 0426b02b13..5884100cf8 100644
--- a/common/include/Utilities/TraceLog.h
+++ b/common/include/Utilities/TraceLog.h
@@ -77,7 +77,7 @@ public:
 	bool			Enabled;
 
 protected:
-	BaseTraceLogSource() {}
+	BaseTraceLogSource() : m_Descriptor(NULL), Enabled(false) {}
 
 public:
 	TraceLog_ImplementBaseAPI(BaseTraceLogSource)
diff --git a/pcsx2/CDVD/InputIsoFile.cpp b/pcsx2/CDVD/InputIsoFile.cpp
index ca0b3dd010..e0012db3bc 100644
--- a/pcsx2/CDVD/InputIsoFile.cpp
+++ b/pcsx2/CDVD/InputIsoFile.cpp
@@ -179,7 +179,10 @@ void InputIsoFile::_init()
 	
 	m_read_inprogress = false;
 	m_read_count = 0;
+	ReadUnit = 0;
+	m_current_lsn = -1;
 	m_read_lsn = -1;
+	m_reader = NULL;
 }
 
 // Tests the specified filename to see if it is a supported ISO type.  This function typically
diff --git a/pcsx2/CDVD/IsoFileFormats.h b/pcsx2/CDVD/IsoFileFormats.h
index c390fb510a..d528afdbe9 100644
--- a/pcsx2/CDVD/IsoFileFormats.h
+++ b/pcsx2/CDVD/IsoFileFormats.h
@@ -48,7 +48,6 @@ protected:
 	AsyncFileReader*	m_reader;
 
 	s32 		m_current_lsn;
-	uint		m_current_count;
 
 	isoType		m_type;
 	u32			m_flags;
diff --git a/pcsx2/DebugTools/Debug.h b/pcsx2/DebugTools/Debug.h
index 9e9e4b0fdb..a55c0080ac 100644
--- a/pcsx2/DebugTools/Debug.h
+++ b/pcsx2/DebugTools/Debug.h
@@ -65,9 +65,6 @@ struct SysTraceLogDescriptor
 // logging volume).
 class SysTraceLog : public TextFileTraceLog
 {
-public:
-	const char*		PrePrefix;
-
 public:
 	TraceLog_ImplementBaseAPI(SysTraceLog)
 
@@ -77,12 +74,6 @@ public:
 
 	void DoWrite( const char *fmt ) const;
 
-	SysTraceLog& SetPrefix( const char* name )
-	{
-		PrePrefix = name;
-		return *this;
-	}
-
 };
 
 class SysTraceLog_EE : public SysTraceLog
diff --git a/pcsx2/DebugTools/DisassemblyManager.h b/pcsx2/DebugTools/DisassemblyManager.h
index 068e105311..9058b9f5f0 100644
--- a/pcsx2/DebugTools/DisassemblyManager.h
+++ b/pcsx2/DebugTools/DisassemblyManager.h
@@ -206,7 +206,7 @@ public:
 private:
 	DisassemblyEntry* getEntry(u32 address);
 	std::map<u32,DisassemblyEntry*> entries;
-	DebugInterface* cpu;
+	DebugInterface* cpu = NULL;
 	static int maxParamChars;
 };
 
diff --git a/pcsx2/gui/MainFrame.h b/pcsx2/gui/MainFrame.h
index 71d75da5a2..b8417d1d1a 100644
--- a/pcsx2/gui/MainFrame.h
+++ b/pcsx2/gui/MainFrame.h
@@ -47,22 +47,12 @@ protected:
 	// A list of menu items belonging to this plugin's menu.
 	MenuItemAddonList	m_PluginMenuItems;
 
-	// Base index for inserting items, usually points to the position
-	// after the heading entry and separator.
-	int					m_InsertIndexBase;
-
-	// Current index for inserting menu items; increments with each item
-	// added by a plugin.
-	int					m_InsertIndexCur;
-
 public:
 	PluginsEnum_t		PluginId;
-	wxMenu&				MyMenu;
+	wxMenu&			MyMenu;
 
 public:
-	PerPluginMenuInfo() : MyMenu( *new wxMenu() )
-	{
-	}
+	PerPluginMenuInfo() : MyMenu(*new wxMenu()), PluginId (PluginId_Count) {}
 
 	virtual ~PerPluginMenuInfo() throw();
 
@@ -226,4 +216,4 @@ protected:
 	friend class Pcsx2App;
 };
 
-extern int GetPluginMenuId_Settings( PluginsEnum_t pid );
\ No newline at end of file
+extern int GetPluginMenuId_Settings( PluginsEnum_t pid );
diff --git a/pcsx2/gui/MemoryCardFolder.cpp b/pcsx2/gui/MemoryCardFolder.cpp
index f9acb749d0..2f6885af4e 100644
--- a/pcsx2/gui/MemoryCardFolder.cpp
+++ b/pcsx2/gui/MemoryCardFolder.cpp
@@ -29,6 +29,9 @@ bool RemoveDirectory( const wxString& dirname );
 FolderMemoryCard::FolderMemoryCard() {
 	m_slot = 0;
 	m_isEnabled = false;
+	m_performFileWrites = false;
+	m_framesUntilFlush = 0;
+	m_timeLastWritten = 0;
 }
 
 void FolderMemoryCard::InitializeInternalData() {
diff --git a/pcsx2/gui/Panels/LogOptionsPanels.h b/pcsx2/gui/Panels/LogOptionsPanels.h
index 967d6fc2d4..b7d51f4ef8 100644
--- a/pcsx2/gui/Panels/LogOptionsPanels.h
+++ b/pcsx2/gui/Panels/LogOptionsPanels.h
@@ -28,8 +28,8 @@ namespace Panels
 		wxStaticBoxSizer*	m_miscGroup;
 
 	public:
-		BaseCpuLogOptionsPanel( wxWindow* parent, const wxString& title, wxOrientation orient=wxVERTICAL )
-			: CheckedStaticBox( parent, orient, title ) {}
+		BaseCpuLogOptionsPanel(wxWindow* parent, const wxString& title, wxOrientation orient = wxVERTICAL)
+			: CheckedStaticBox(parent, orient, title), m_miscGroup(NULL){}
 
 		virtual wxStaticBoxSizer* GetMiscGroup() const { return m_miscGroup; }
 		virtual CheckedStaticBox* GetStaticBox( const wxString& subgroup ) const=0;
diff --git a/pcsx2/gui/Panels/MemoryCardListPanel.cpp b/pcsx2/gui/Panels/MemoryCardListPanel.cpp
index d9371ff7f4..fdf11893f7 100644
--- a/pcsx2/gui/Panels/MemoryCardListPanel.cpp
+++ b/pcsx2/gui/Panels/MemoryCardListPanel.cpp
@@ -190,6 +190,8 @@ Panels::BaseMcdListPanel::BaseMcdListPanel( wxWindow* parent )
 	);
 
 	m_listview = NULL;
+	s_leftside_buttons = NULL;
+	s_rightside_buttons = NULL;
 
 	m_btn_Refresh = new wxButton( this, wxID_ANY, _("Refresh list") );
 
diff --git a/pcsx2/gui/Panels/MemoryCardPanels.h b/pcsx2/gui/Panels/MemoryCardPanels.h
index f484d2cf0f..6b4ad36623 100644
--- a/pcsx2/gui/Panels/MemoryCardPanels.h
+++ b/pcsx2/gui/Panels/MemoryCardPanels.h
@@ -62,11 +62,14 @@ struct McdSlotItem
 
 	McdSlotItem()
 	{
-		Slot		= -1;
+		Slot = -1;
+		SizeInMB = 0;
+		Type = MemoryCard_None;
 		
 		IsPSX = false;
 		IsPresent = false;
 		IsEnabled = false;
+		IsFormatted = false;
 	}
 
 };
diff --git a/pcsx2/gui/Panels/PluginSelectorPanel.cpp b/pcsx2/gui/Panels/PluginSelectorPanel.cpp
index ec1d4118e7..99e3f433fe 100644
--- a/pcsx2/gui/Panels/PluginSelectorPanel.cpp
+++ b/pcsx2/gui/Panels/PluginSelectorPanel.cpp
@@ -227,7 +227,7 @@ protected:
 IMPLEMENT_DYNAMIC_CLASS(ApplyPluginsDialog, WaitForTaskDialog)
 
 ApplyPluginsDialog::ApplyPluginsDialog( BaseApplicableConfigPanel* panel )
-	: WaitForTaskDialog( _("Applying settings...") )
+: WaitForTaskDialog(_("Applying settings...")), m_panel(NULL)
 {
 	GetSysExecutorThread().PostEvent( new SysExecEvent_ApplyPlugins( this, m_sync ) );
 }
diff --git a/plugins/GSdx/GSState.cpp b/plugins/GSdx/GSState.cpp
index c64c544052..aa3d438bb9 100644
--- a/plugins/GSdx/GSState.cpp
+++ b/plugins/GSdx/GSState.cpp
@@ -2982,6 +2982,7 @@ bool GSState::IsMipMapActive()
 GSState::GSTransferBuffer::GSTransferBuffer()
 {
 	x = y = 0;
+	overflow = false;
 	start = end = total = 0;
 	buff = (uint8*)_aligned_malloc(1024 * 1024 * 4, 32);
 }
diff --git a/plugins/spu2-x/src/SndOut_Portaudio.cpp b/plugins/spu2-x/src/SndOut_Portaudio.cpp
index 8afa70a886..e42c77f7db 100644
--- a/plugins/spu2-x/src/SndOut_Portaudio.cpp
+++ b/plugins/spu2-x/src/SndOut_Portaudio.cpp
@@ -110,11 +110,18 @@ public:
 
 	Portaudio()
 	{
-		m_ApiId=-1;
 		m_SuggestedLatencyMinimal = true;
+		m_UseHardware = false;
+		m_WasapiExclusiveMode = false;
+		started = false;
+		stream = NULL;
+		ActualPaCallback = NULL;
+		m_ApiId=-1;
 		m_SuggestedLatencyMS = 20;
-
 		actualUsedChannels = 0;
+		writtenSoFar = 0;
+		writtenLastTime = 0;
+		availableLastTime = 0;
 	}
 
 	s32 Init()