diff --git a/ananke/nall/thread.hpp b/ananke/nall/thread.hpp
index 8517726b6..3368d15d2 100644
--- a/ananke/nall/thread.hpp
+++ b/ananke/nall/thread.hpp
@@ -6,38 +6,79 @@
 #include <nall/intrinsics.hpp>
 
 #if defined(PLATFORM_X) || defined(PLATFORM_OSX)
-  #include <thread>
-#elif defined(PLATFORM_WIN)
+  #include <pthread.h>
 
-//TDM/GCC 4.7 does not support std::thread
-//implement an extremely lightweight wrapper
-
-namespace std {
-  inline DWORD WINAPI thread_entry_point(LPVOID parameter);
+namespace nall {
+  void* thread_entry_point(void*);
 
   struct thread {
-    bool joinable() const {
-      return active == false;
+    thread(function<void ()> entryPoint) : entryPoint(entryPoint), completed(false), dead(false) {
+      pthread_create(&pthread, NULL, thread_entry_point, (void*)this);
+    }
+
+    ~thread() {
+      join();
+    }
+
+    bool active() const {
+      return completed == false;
     }
 
     void join() {
-      while(active) usleep(1);
-    }
-
-    thread(function<void ()> entryPoint) : entryPoint(entryPoint), active(true) {
-      CreateThread(NULL, 0, thread_entry_point, (void*)this, 0, NULL);
+      if(dead) return;
+      dead = true;
+      pthread_join(pthread, NULL);
     }
 
   private:
+    pthread_t pthread;
     function<void ()> entryPoint;
-    bool active;
+    volatile bool completed, dead;
+    friend void* thread_entry_point(void*);
+  };
+
+  void* thread_entry_point(void *parameter) {
+    thread *context = (thread*)parameter;
+    context->entryPoint();
+    context->completed = true;
+    pthread_exit(0);
+  }
+}
+#elif defined(PLATFORM_WIN)
+namespace nall {
+  inline DWORD WINAPI thread_entry_point(LPVOID);
+
+  struct thread {
+    thread(function<void ()> entryPoint) : entryPoint(entryPoint), completed(false), dead(false) {
+      hthread = CreateThread(NULL, 0, thread_entry_point, (void*)this, 0, NULL);
+    }
+
+    ~thread() {
+      join();
+    }
+
+    bool active() const {
+      return completed == false;
+    }
+
+    void join() {
+      if(dead) return;
+      dead = true;
+      WaitForSingleObject(hthread, INFINITE);
+      CloseHandle(hthread);
+    }
+
+  private:
+    HANDLE hthread;
+    function<void ()> entryPoint;
+    volatile bool completed, dead;
     friend DWORD WINAPI thread_entry_point(LPVOID);
   };
 
   inline DWORD WINAPI thread_entry_point(LPVOID parameter) {
     thread *context = (thread*)parameter;
     context->entryPoint();
-    context->active = false;
+    context->completed = true;
     return 0;
   }
 }
diff --git a/ananke/super-famicom.cpp b/ananke/super-famicom.cpp
index 4446d7afa..e0c8db350 100644
--- a/ananke/super-famicom.cpp
+++ b/ananke/super-famicom.cpp
@@ -139,6 +139,8 @@ string Ananke::openSuperFamicom(vector<uint8_t> &buffer) {
 }
 
 string Ananke::syncSuperFamicom(const string &pathname) {
+  if(file::exists({pathname, "msu1.rom"})) return "";  //cannot update MSU1 games
+
   vector<uint8_t> buffer;
 
   auto append = [&](string filename) {
diff --git a/purify/Makefile b/purify/Makefile
index 8dc232cea..53ba038fd 100644
--- a/purify/Makefile
+++ b/purify/Makefile
@@ -22,7 +22,7 @@ obj/purify.o: purify.cpp
 
 build: $(objects)
 ifeq ($(platform),x)
-	$(cpp) $(link) -o purify $(objects) $(phoenixlink)
+	$(cpp) -pthread $(link) -o purify $(objects) $(phoenixlink)
 else ifeq ($(platform),win)
 	windres phoenix/windows/phoenix.rc obj/phoenix-resource.o
 	$(cpp) -shared -o phoenix.dll obj/phoenix.o $(phoenixlink)
diff --git a/purify/nall/thread.hpp b/purify/nall/thread.hpp
index 8517726b6..3368d15d2 100644
--- a/purify/nall/thread.hpp
+++ b/purify/nall/thread.hpp
@@ -6,38 +6,79 @@
 #include <nall/intrinsics.hpp>
 
 #if defined(PLATFORM_X) || defined(PLATFORM_OSX)
-  #include <thread>
-#elif defined(PLATFORM_WIN)
+  #include <pthread.h>
 
-//TDM/GCC 4.7 does not support std::thread
-//implement an extremely lightweight wrapper
-
-namespace std {
-  inline DWORD WINAPI thread_entry_point(LPVOID parameter);
+namespace nall {
+  void* thread_entry_point(void*);
 
   struct thread {
-    bool joinable() const {
-      return active == false;
+    thread(function<void ()> entryPoint) : entryPoint(entryPoint), completed(false), dead(false) {
+      pthread_create(&pthread, NULL, thread_entry_point, (void*)this);
+    }
+
+    ~thread() {
+      join();
+    }
+
+    bool active() const {
+      return completed == false;
     }
 
     void join() {
-      while(active) usleep(1);
-    }
-
-    thread(function<void ()> entryPoint) : entryPoint(entryPoint), active(true) {
-      CreateThread(NULL, 0, thread_entry_point, (void*)this, 0, NULL);
+      if(dead) return;
+      dead = true;
+      pthread_join(pthread, NULL);
     }
 
   private:
+    pthread_t pthread;
     function<void ()> entryPoint;
-    bool active;
+    volatile bool completed, dead;
+    friend void* thread_entry_point(void*);
+  };
+
+  void* thread_entry_point(void *parameter) {
+    thread *context = (thread*)parameter;
+    context->entryPoint();
+    context->completed = true;
+    pthread_exit(0);
+  }
+}
+#elif defined(PLATFORM_WIN)
+namespace nall {
+  inline DWORD WINAPI thread_entry_point(LPVOID);
+
+  struct thread {
+    thread(function<void ()> entryPoint) : entryPoint(entryPoint), completed(false), dead(false) {
+      hthread = CreateThread(NULL, 0, thread_entry_point, (void*)this, 0, NULL);
+    }
+
+    ~thread() {
+      join();
+    }
+
+    bool active() const {
+      return completed == false;
+    }
+
+    void join() {
+      if(dead) return;
+      dead = true;
+      WaitForSingleObject(hthread, INFINITE);
+      CloseHandle(hthread);
+    }
+
+  private:
+    HANDLE hthread;
+    function<void ()> entryPoint;
+    volatile bool completed, dead;
     friend DWORD WINAPI thread_entry_point(LPVOID);
   };
 
   inline DWORD WINAPI thread_entry_point(LPVOID parameter) {
     thread *context = (thread*)parameter;
     context->entryPoint();
-    context->active = false;
+    context->completed = true;
     return 0;
   }
 }
diff --git a/purify/purify.cpp b/purify/purify.cpp
index 1140524bc..18c9f5199 100644
--- a/purify/purify.cpp
+++ b/purify/purify.cpp
@@ -42,7 +42,7 @@ Application::Application() {
   }
 
   setFrameGeometry({64, 64, 720, 480});
-  setTitle("purify v02.01");
+  setTitle("purify v03");
 
   layout.setMargin(5);
   pathLabel.setText("Path:");
@@ -181,8 +181,8 @@ void Application::purify() {
   OS::processEvents();
 
   PurifyContext purifyContext(purifyList);
-  std::thread purifyThread([&] { purifyContext.run(); });
-  while(purifyContext.position < purifyContext.size) {
+  nall::thread purifyThread([&] { purifyContext.run(); });
+  while(purifyThread.active()) {
     OS::processEvents();
     unsigned position = ((unsigned)(double)purifyContext.position / (double)purifyContext.size * 100.0 + 0.5);
     progressBar.setPosition(position);